72936278 has 4 divisors (see below), whose sum is σ = 109404420. Its totient is φ = 36468138.

The previous prime is 72936263. The next prime is 72936293. The reversal of 72936278 is 87263927.

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

It is an interprime number because it is at equal distance from previous prime (72936263) and next prime (72936293).

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, 18234068 + ... + 18234071.

It is an arithmetic number, because the mean of its divisors is an integer number (27351105).

Almost surely, 2^72936278 is an apocalyptic number.

72936278 is a deficient number, since it is larger than the sum of its proper divisors (36468142).

72936278 is a wasteful number, since it uses less digits than its factorization.

72936278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36468141.

The product of its digits is 254016, while the sum is 44.

The square root of 72936278 is about 8540.2738831960. The cubic root of 72936278 is about 417.8122788257.

The spelling of 72936278 in words is "seventy-two million, nine hundred thirty-six thousand, two hundred seventy-eight".