690506942 has 8 divisors (see below), whose sum is σ = 1036178832. Its totient is φ = 345114000.

The previous prime is 690506941. The next prime is 690506951. The reversal of 690506942 is 249605096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 690506942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690506941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63434 + ... + 73517.

It is an arithmetic number, because the mean of its divisors is an integer number (129522354).

Almost surely, 2^690506942 is an apocalyptic number.

690506942 is a deficient number, since it is larger than the sum of its proper divisors (345671890).

690506942 is a wasteful number, since it uses less digits than its factorization.

690506942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139474.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 690506942 is about 26277.4987774712. The cubic root of 690506942 is about 883.8719460917.

The spelling of 690506942 in words is "six hundred ninety million, five hundred six thousand, nine hundred forty-two".