72214739 has 8 divisors (see below), whose sum is σ = 74240352. Its totient is φ = 70217280.

The previous prime is 72214729. The next prime is 72214741. The reversal of 72214739 is 93741227.

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-72214739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72214699 and 72214708.

It is not an unprimeable number, because it can be changed into a prime (72214729) 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, 1784 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (9280044).

Almost surely, 2^72214739 is an apocalyptic number.

72214739 is a deficient number, since it is larger than the sum of its proper divisors (2025613).

72214739 is a wasteful number, since it uses less digits than its factorization.

72214739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14077.

The product of its digits is 21168, while the sum is 35.

The square root of 72214739 is about 8497.9255703966. The cubic root of 72214739 is about 416.4299421909.

The spelling of 72214739 in words is "seventy-two million, two hundred fourteen thousand, seven hundred thirty-nine".