72615693 has 8 divisors (see below), whose sum is σ = 96876000. Its totient is φ = 48382928.

The previous prime is 72615689. The next prime is 72615709. The reversal of 72615693 is 39651627.

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

It is a cyclic number.

It is not a de Polignac number, because 72615693 - 2² = 72615689 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72615643) 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, 358 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (12109500).

Almost surely, 2^72615693 is an apocalyptic number.

It is an amenable number.

72615693 is a deficient number, since it is larger than the sum of its proper divisors (24260307).

72615693 is a wasteful number, since it uses less digits than its factorization.

72615693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13771.

The product of its digits is 68040, while the sum is 39.

The square root of 72615693 is about 8521.4842017104. The cubic root of 72615693 is about 417.1992273576.

The spelling of 72615693 in words is "seventy-two million, six hundred fifteen thousand, six hundred ninety-three".