697434971 has 4 divisors (see below), whose sum is σ = 698011152. Its totient is φ = 696858792.

The previous prime is 697434967. The next prime is 697435001. The reversal of 697434971 is 179434796.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 697434971 - 2² = 697434967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697434371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286271 + ... + 288696.

It is an arithmetic number, because the mean of its divisors is an integer number (174502788).

Almost surely, 2^697434971 is an apocalyptic number.

697434971 is a deficient number, since it is larger than the sum of its proper divisors (576181).

697434971 is a wasteful number, since it uses less digits than its factorization.

697434971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576180.

The product of its digits is 1143072, while the sum is 50.

The square root of 697434971 is about 26408.9941307881. The cubic root of 697434971 is about 886.8181507783.

The spelling of 697434971 in words is "six hundred ninety-seven million, four hundred thirty-four thousand, nine hundred seventy-one".