690520711 has 12 divisors (see below), whose sum is σ = 716895712. Its totient is φ = 665086464.

The previous prime is 690520687. The next prime is 690520763. The reversal of 690520711 is 117025096.

It is not a de Polignac number, because 690520711 - 2⁵ = 690520679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690520111) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 484546 + ... + 485968.

Almost surely, 2^690520711 is an apocalyptic number.

690520711 is a deficient number, since it is larger than the sum of its proper divisors (26375001).

690520711 is a wasteful number, since it uses less digits than its factorization.

690520711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 2029 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 690520711 is about 26277.7607683760. The cubic root of 690520711 is about 883.8778209793.

The spelling of 690520711 in words is "six hundred ninety million, five hundred twenty thousand, seven hundred eleven".