70741990 has 32 divisors (see below), whose sum is σ = 139864320. Its totient is φ = 25548000.

The previous prime is 70741987. The next prime is 70742033. The reversal of 70741990 is 9914707.

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 15 ways as a sum of consecutive naturals, for example, 14481 + ... + 18739.

It is an arithmetic number, because the mean of its divisors is an integer number (4370760).

Almost surely, 2^70741990 is an apocalyptic number.

70741990 is a deficient number, since it is larger than the sum of its proper divisors (69122330).

70741990 is a wasteful number, since it uses less digits than its factorization.

70741990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4428.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 70741990 is about 8410.8257620759. The cubic root of 70741990 is about 413.5795828570.

The spelling of 70741990 in words is "seventy million, seven hundred forty-one thousand, nine hundred ninety".