690495488 has 56 divisors (see below), whose sum is σ = 1425976320. Its totient is φ = 333987840.

The previous prime is 690495479. The next prime is 690495493. The reversal of 690495488 is 884594096.

It is a happy 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, 252593 + ... + 255311.

Almost surely, 2^690495488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 690495488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (712988160).

690495488 is an abundant number, since it is smaller than the sum of its proper divisors (735480832).

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

690495488 is an equidigital number, since it uses as much as digits as its factorization.

690495488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776 (or 2752 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 53.

The square root of 690495488 is about 26277.2808334500. The cubic root of 690495488 is about 883.8670588972.

The spelling of 690495488 in words is "six hundred ninety million, four hundred ninety-five thousand, four hundred eighty-eight".