690554494 has 8 divisors (see below), whose sum is σ = 1183807728. Its totient is φ = 295951920.

The previous prime is 690554483. The next prime is 690554509. The reversal of 690554494 is 494455096.

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

It is a congruent number.

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, 24662647 + ... + 24662674.

It is an arithmetic number, because the mean of its divisors is an integer number (147975966).

Almost surely, 2^690554494 is an apocalyptic number.

690554494 is a deficient number, since it is larger than the sum of its proper divisors (493253234).

690554494 is a wasteful number, since it uses less digits than its factorization.

690554494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49325330.

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 690554494 is about 26278.4035664269. The cubic root of 690554494 is about 883.8922350087.

The spelling of 690554494 in words is "six hundred ninety million, five hundred fifty-four thousand, four hundred ninety-four".