690318486 has 48 divisors (see below), whose sum is σ = 1757180880. Its totient is φ = 193095360.

The previous prime is 690318479. The next prime is 690318539. The reversal of 690318486 is 684813096.

It is a super-2 number, since 2×690318486² = 953079224226664392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131521 + ... + 136668.

It is an arithmetic number, because the mean of its divisors is an integer number (36607935).

Almost surely, 2^690318486 is an apocalyptic number.

690318486 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

690318486 is an abundant number, since it is smaller than the sum of its proper divisors (1066862394).

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

690318486 is a wasteful number, since it uses less digits than its factorization.

690318486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268221 (or 268218 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 690318486 is about 26273.9126511451. The cubic root of 690318486 is about 883.7915287841.

The spelling of 690318486 in words is "six hundred ninety million, three hundred eighteen thousand, four hundred eighty-six".