697438413 has 72 divisors (see below), whose sum is σ = 1271644920. Its totient is φ = 365783040.

The previous prime is 697438411. The next prime is 697438451. The reversal of 697438413 is 314834796.

It can be written as a sum of positive squares in 4 ways, for example, as 636804 + 696801609 = 798^2 + 26397^2 .

It is not a de Polignac number, because 697438413 - 2¹ = 697438411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697438411) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 306243 + ... + 308511.

It is an arithmetic number, because the mean of its divisors is an integer number (17661735).

Almost surely, 2^697438413 is an apocalyptic number.

697438413 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

697438413 is a deficient number, since it is larger than the sum of its proper divisors (574206507).

697438413 is a wasteful number, since it uses less digits than its factorization.

697438413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2347 (or 2337 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 697438413 is about 26409.0592979000. The cubic root of 697438413 is about 886.8196096589.

The spelling of 697438413 in words is "six hundred ninety-seven million, four hundred thirty-eight thousand, four hundred thirteen".