697855042 has 8 divisors (see below), whose sum is σ = 1047325500. Its totient is φ = 348746544.

The previous prime is 697855031. The next prime is 697855051. The reversal of 697855042 is 240558796.

It can be written as a sum of positive squares in 2 ways, for example, as 517517001 + 180338041 = 22749^2 + 13429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 697854983 and 697855001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85617 + ... + 93412.

Almost surely, 2^697855042 is an apocalyptic number.

697855042 is a deficient number, since it is larger than the sum of its proper divisors (349470458).

697855042 is a wasteful number, since it uses less digits than its factorization.

697855042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180980.

The product of its (nonzero) digits is 604800, while the sum is 46.

The square root of 697855042 is about 26416.9461141897. The cubic root of 697855042 is about 886.9961610760.

The spelling of 697855042 in words is "six hundred ninety-seven million, eight hundred fifty-five thousand, forty-two".