74729670 has 32 divisors (see below), whose sum is σ = 179788032. Its totient is φ = 19879392.

The previous prime is 74729621. The next prime is 74729713. The reversal of 74729670 is 7692747.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10479 + ... + 16101.

It is an arithmetic number, because the mean of its divisors is an integer number (5618376).

Almost surely, 2^74729670 is an apocalyptic number.

74729670 is an abundant number, since it is smaller than the sum of its proper divisors (105058362).

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

74729670 is a wasteful number, since it uses less digits than its factorization.

74729670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076.

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 74729670 is about 8644.6324386870. The cubic root of 74729670 is about 421.2090445556.

The spelling of 74729670 in words is "seventy-four million, seven hundred twenty-nine thousand, six hundred seventy".