72688045 has 8 divisors (see below), whose sum is σ = 87367680. Its totient is φ = 58055760.

The previous prime is 72688037. The next prime is 72688061. The reversal of 72688045 is 54088627.

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

It is not a de Polignac number, because 72688045 - 2³ = 72688037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72687989 and 72688007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8365 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (10920960).

Almost surely, 2^72688045 is an apocalyptic number.

It is an amenable number.

72688045 is a deficient number, since it is larger than the sum of its proper divisors (14679635).

72688045 is a wasteful number, since it uses less digits than its factorization.

72688045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23675.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 72688045 is about 8525.7284146283. The cubic root of 72688045 is about 417.3377427740.

The spelling of 72688045 in words is "seventy-two million, six hundred eighty-eight thousand, forty-five".