694156980 has 96 divisors (see below), whose sum is σ = 2125444608. Its totient is φ = 167875200.

The previous prime is 694156933. The next prime is 694156987. The reversal of 694156980 is 89651496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (694156987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344175 + ... + 346185.

It is an arithmetic number, because the mean of its divisors is an integer number (22140048).

Almost surely, 2^694156980 is an apocalyptic number.

694156980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 694156980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062722304).

694156980 is an abundant number, since it is smaller than the sum of its proper divisors (1431287628).

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

694156980 is a wasteful number, since it uses less digits than its factorization.

694156980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 694156980 is about 26346.8590158296. The cubic root of 694156980 is about 885.4266001660.

The spelling of 694156980 in words is "six hundred ninety-four million, one hundred fifty-six thousand, nine hundred eighty".