690487536 has 40 divisors (see below), whose sum is σ = 1785291984. Its totient is φ = 229964800.

The previous prime is 690487489. The next prime is 690487537. The reversal of 690487536 is 635784096.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690487537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56920 + ... + 67976.

Almost surely, 2^690487536 is an apocalyptic number.

It is an amenable number.

690487536 is an abundant number, since it is smaller than the sum of its proper divisors (1094804448).

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

690487536 is a wasteful number, since it uses less digits than its factorization.

690487536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12369 (or 12363 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The square root of 690487536 is about 26277.1295235990. The cubic root of 690487536 is about 883.8636659048.

The spelling of 690487536 in words is "six hundred ninety million, four hundred eighty-seven thousand, five hundred thirty-six".