1397000850 has 96 divisors (see below), whose sum is σ = 3970400640. Its totient is φ = 318435840.

The previous prime is 1397000849. The next prime is 1397000851. The reversal of 1397000850 is 580007931.

It is an interprime number because it is at equal distance from previous prime (1397000849) and next prime (1397000851).

It is a super-2 number, since 2×1397000850² = 3903222749801445000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1397000851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 427824 + ... + 431076.

It is an arithmetic number, because the mean of its divisors is an integer number (41358340).

Almost surely, 2^1397000850 is an apocalyptic number.

1397000850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1397000850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1985200320).

1397000850 is an abundant number, since it is smaller than the sum of its proper divisors (2573399790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1397000850 is a wasteful number, since it uses less digits than its factorization.

1397000850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684 (or 3679 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1397000850 is about 37376.4745528521. The cubic root of 1397000850 is about 1117.8895338365.

The spelling of 1397000850 in words is "one billion, three hundred ninety-seven million, eight hundred fifty", and thus it is an aban number.