690481950 has 48 divisors (see below), whose sum is σ = 1716425856. Its totient is φ = 183695200.

The previous prime is 690481949. The next prime is 690481993. The reversal of 690481950 is 59184096.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61255 + ... + 71645.

It is an arithmetic number, because the mean of its divisors is an integer number (35758872).

Almost surely, 2^690481950 is an apocalyptic number.

690481950 is an abundant number, since it is smaller than the sum of its proper divisors (1025943906).

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

690481950 is a wasteful number, since it uses less digits than its factorization.

690481950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10849 (or 10844 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 690481950 is about 26277.0232332355. The cubic root of 690481950 is about 883.8612824315.

The spelling of 690481950 in words is "six hundred ninety million, four hundred eighty-one thousand, nine hundred fifty".