690375654 has 12 divisors (see below), whose sum is σ = 1495813956. Its totient is φ = 230125212.

The previous prime is 690375619. The next prime is 690375677. The reversal of 690375654 is 456573096.

690375654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19177084 + ... + 19177119.

It is an arithmetic number, because the mean of its divisors is an integer number (124651163).

Almost surely, 2^690375654 is an apocalyptic number.

690375654 is an abundant number, since it is smaller than the sum of its proper divisors (805438302).

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

690375654 is a wasteful number, since it uses less digits than its factorization.

690375654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38354211 (or 38354208 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 45.

The square root of 690375654 is about 26275.0005518554. Note that the first 3 decimals coincide. The cubic root of 690375654 is about 883.8159248662.

It can be divided in two parts, 69037 and 5654, that added together give a triangular number (74691 = T₃₈₆).

The spelling of 690375654 in words is "six hundred ninety million, three hundred seventy-five thousand, six hundred fifty-four".