72632198 has 4 divisors (see below), whose sum is σ = 108948300. Its totient is φ = 36316098.

The previous prime is 72632173. The next prime is 72632213. The reversal of 72632198 is 89123627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89123627 = 41 ⋅2173747.

It is a super-2 number, since 2×72632198² = 10550872372622408, which contains 22 as substring.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 18158048 + ... + 18158051.

It is an arithmetic number, because the mean of its divisors is an integer number (27237075).

Almost surely, 2^72632198 is an apocalyptic number.

72632198 is a deficient number, since it is larger than the sum of its proper divisors (36316102).

72632198 is a wasteful number, since it uses less digits than its factorization.

72632198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36316101.

The product of its digits is 36288, while the sum is 38.

The square root of 72632198 is about 8522.4525812703. The cubic root of 72632198 is about 417.2308337103.

The spelling of 72632198 in words is "seventy-two million, six hundred thirty-two thousand, one hundred ninety-eight".