690597954 has 32 divisors (see below), whose sum is σ = 1601389440. Its totient is φ = 220190256.

The previous prime is 690597923. The next prime is 690597961. The reversal of 690597954 is 459795096.

It is a super-2 number, since 2×690597954² = 953851068137972232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 690597954.

It is an unprimeable number.

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, 276777 + ... + 279260.

It is an arithmetic number, because the mean of its divisors is an integer number (50043420).

Almost surely, 2^690597954 is an apocalyptic number.

690597954 is an abundant number, since it is smaller than the sum of its proper divisors (910791486).

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

690597954 is a wasteful number, since it uses less digits than its factorization.

690597954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556071 (or 556065 counting only the distinct ones).

The product of its (nonzero) digits is 3061800, while the sum is 54.

The square root of 690597954 is about 26279.2304681853. The cubic root of 690597954 is about 883.9107771855.

The spelling of 690597954 in words is "six hundred ninety million, five hundred ninety-seven thousand, nine hundred fifty-four".