74991470 has 8 divisors (see below), whose sum is σ = 134984664. Its totient is φ = 29996584.

The previous prime is 74991457. The next prime is 74991481. The reversal of 74991470 is 7419947.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3749564 + ... + 3749583.

It is an arithmetic number, because the mean of its divisors is an integer number (16873083).

Almost surely, 2^74991470 is an apocalyptic number.

74991470 is a deficient number, since it is larger than the sum of its proper divisors (59993194).

74991470 is a wasteful number, since it uses less digits than its factorization.

74991470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499154.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 74991470 is about 8659.7615440611. The cubic root of 74991470 is about 421.7003443100.

The spelling of 74991470 in words is "seventy-four million, nine hundred ninety-one thousand, four hundred seventy".