1396434837 has 32 divisors (see below), whose sum is σ = 2168061952. Its totient is φ = 782996544.

The previous prime is 1396434829. The next prime is 1396434877. The reversal of 1396434837 is 7384346931.

It is not a de Polignac number, because 1396434837 - 2³ = 1396434829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396434877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 387948 + ... + 391530.

It is an arithmetic number, because the mean of its divisors is an integer number (67751936).

Almost surely, 2^1396434837 is an apocalyptic number.

It is an amenable number.

1396434837 is a deficient number, since it is larger than the sum of its proper divisors (771627115).

1396434837 is a wasteful number, since it uses less digits than its factorization.

1396434837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937.

The product of its digits is 1306368, while the sum is 48.

The square root of 1396434837 is about 37368.9020042067. The cubic root of 1396434837 is about 1117.7385376310.

The spelling of 1396434837 in words is "one billion, three hundred ninety-six million, four hundred thirty-four thousand, eight hundred thirty-seven".