70584990 has 48 divisors (see below), whose sum is σ = 197065872. Its totient is φ = 16133376.

The previous prime is 70584977. The next prime is 70585007. The reversal of 70584990 is 9948507.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 22539 + ... + 25478.

It is an arithmetic number, because the mean of its divisors is an integer number (4105539).

Almost surely, 2^70584990 is an apocalyptic number.

70584990 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

70584990 is an abundant number, since it is smaller than the sum of its proper divisors (126480882).

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

70584990 is a wasteful number, since it uses less digits than its factorization.

70584990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48041 (or 48034 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 70584990 is about 8401.4873683176. The cubic root of 70584990 is about 413.2733993629.

The spelling of 70584990 in words is "seventy million, five hundred eighty-four thousand, nine hundred ninety".