697434965 has 4 divisors (see below), whose sum is σ = 836921964. Its totient is φ = 557947968.

The previous prime is 697434937. The next prime is 697434967. The reversal of 697434965 is 569434796.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 325369444 + 372065521 = 18038^2 + 19289^2 .

It is a cyclic number.

It is not a de Polignac number, because 697434965 - 2¹⁶ = 697369429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (697434967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69743492 + ... + 69743501.

It is an arithmetic number, because the mean of its divisors is an integer number (209230491).

Almost surely, 2^697434965 is an apocalyptic number.

It is an amenable number.

697434965 is a deficient number, since it is larger than the sum of its proper divisors (139486999).

697434965 is a wasteful number, since it uses less digits than its factorization.

697434965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139486998.

The product of its digits is 4898880, while the sum is 53.

The square root of 697434965 is about 26408.9940171904. The cubic root of 697434965 is about 886.8181482352.

The spelling of 697434965 in words is "six hundred ninety-seven million, four hundred thirty-four thousand, nine hundred sixty-five".