690253086 has 16 divisors (see below), whose sum is σ = 1383467904. Its totient is φ = 229590744.

The previous prime is 690253063. The next prime is 690253087. The reversal of 690253086 is 680352096.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690253087) 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, 120370 + ... + 125973.

It is an arithmetic number, because the mean of its divisors is an integer number (86466744).

Almost surely, 2^690253086 is an apocalyptic number.

690253086 is an abundant number, since it is smaller than the sum of its proper divisors (693214818).

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

690253086 is a wasteful number, since it uses less digits than its factorization.

690253086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246815.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 690253086 is about 26272.6680411412. The cubic root of 690253086 is about 883.7636180962.

The spelling of 690253086 in words is "six hundred ninety million, two hundred fifty-three thousand, eighty-six".