74999999 has 8 divisors (see below), whose sum is σ = 77523648. Its totient is φ = 72502560.

The previous prime is 74999959. The next prime is 75000007. The reversal of 74999999 is 99999947.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74999999 is a prime.

It is a Duffinian number.

74999999 is a modest number, since divided by 9999 gives 7499 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74999959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647 + ... + 12264.

It is an arithmetic number, because the mean of its divisors is an integer number (9690456).

Almost surely, 2^74999999 is an apocalyptic number.

74999999 is a deficient number, since it is larger than the sum of its proper divisors (2523649).

74999999 is a wasteful number, since it uses less digits than its factorization.

74999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105.

The product of its digits is 14880348, while the sum is 65.

The square root of 74999999 is about 8660.2539801094. The cubic root of 74999999 is about 421.7163307766.

The spelling of 74999999 in words is "seventy-four million, nine hundred ninety-nine thousand, nine hundred ninety-nine".