72074998 has 4 divisors (see below), whose sum is σ = 108112500. Its totient is φ = 36037498.

The previous prime is 72074987. The next prime is 72075013. The reversal of 72074998 is 89947027.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18018748 + ... + 18018751.

It is an arithmetic number, because the mean of its divisors is an integer number (27028125).

Almost surely, 2^72074998 is an apocalyptic number.

72074998 is a deficient number, since it is larger than the sum of its proper divisors (36037502).

72074998 is a wasteful number, since it uses less digits than its factorization.

72074998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36037501.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 72074998 is about 8489.6995235403. The cubic root of 72074998 is about 416.1611608992.

The spelling of 72074998 in words is "seventy-two million, seventy-four thousand, nine hundred ninety-eight".