690341974 has 24 divisors (see below), whose sum is σ = 1198765008. Its totient is φ = 292078800.

The previous prime is 690341957. The next prime is 690341989. The reversal of 690341974 is 479143096.

It is a self number, because there is not a number n which added to its sum of digits gives 690341974.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 83424 + ... + 91324.

It is an arithmetic number, because the mean of its divisors is an integer number (49948542).

Almost surely, 2^690341974 is an apocalyptic number.

690341974 is a deficient number, since it is larger than the sum of its proper divisors (508423034).

690341974 is an equidigital number, since it uses as much as digits as its factorization.

690341974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068 (or 7989 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 690341974 is about 26274.3596306361. The cubic root of 690341974 is about 883.8015523024.

The spelling of 690341974 in words is "six hundred ninety million, three hundred forty-one thousand, nine hundred seventy-four".