697156842 has 32 divisors (see below), whose sum is σ = 1498381632. Its totient is φ = 215449344.

The previous prime is 697156829. The next prime is 697156891. The reversal of 697156842 is 248651796.

697156842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 697156791 and 697156800.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44173 + ... + 57840.

It is an arithmetic number, because the mean of its divisors is an integer number (46824426).

Almost surely, 2^697156842 is an apocalyptic number.

697156842 is an abundant number, since it is smaller than the sum of its proper divisors (801224790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697156842 is a wasteful number, since it uses less digits than its factorization.

697156842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102102.

The product of its digits is 725760, while the sum is 48.

The square root of 697156842 is about 26403.7278049900. The cubic root of 697156842 is about 886.7002508306.

The spelling of 697156842 in words is "six hundred ninety-seven million, one hundred fifty-six thousand, eight hundred forty-two".