697319642 has 32 divisors (see below), whose sum is σ = 1096727040. Its totient is φ = 332144640.

The previous prime is 697319639. The next prime is 697319647. The reversal of 697319642 is 246913796.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (697319647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704734 + ... + 1705142.

It is an arithmetic number, because the mean of its divisors is an integer number (34272720).

Almost surely, 2^697319642 is an apocalyptic number.

697319642 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

697319642 is a deficient number, since it is larger than the sum of its proper divisors (399407398).

697319642 is a wasteful number, since it uses less digits than its factorization.

697319642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 489888, while the sum is 47.

The square root of 697319642 is about 26406.8105230450. The cubic root of 697319642 is about 886.7692661784.

The spelling of 697319642 in words is "six hundred ninety-seven million, three hundred nineteen thousand, six hundred forty-two".