74729906 has 8 divisors (see below), whose sum is σ = 114480000. Its totient is φ = 36569908.

The previous prime is 74729903. The next prime is 74729911. The reversal of 74729906 is 60992747.

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

It is not an unprimeable number, because it can be changed into a prime (74729903) 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, 397406 + ... + 397593.

It is an arithmetic number, because the mean of its divisors is an integer number (14310000).

Almost surely, 2^74729906 is an apocalyptic number.

74729906 is a deficient number, since it is larger than the sum of its proper divisors (39750094).

74729906 is a wasteful number, since it uses less digits than its factorization.

74729906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795048.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 74729906 is about 8644.6460887650. The cubic root of 74729906 is about 421.2094879548.

The spelling of 74729906 in words is "seventy-four million, seven hundred twenty-nine thousand, nine hundred six".