72615734 has 8 divisors (see below), whose sum is σ = 111456840. Its totient is φ = 35463456.

The previous prime is 72615731. The next prime is 72615737. The reversal of 72615734 is 43751627.

It is an interprime number because it is at equal distance from previous prime (72615731) and next prime (72615737).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72615694 and 72615703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72615731) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 422099 + ... + 422270.

It is an arithmetic number, because the mean of its divisors is an integer number (13932105).

Almost surely, 2^72615734 is an apocalyptic number.

72615734 is a deficient number, since it is larger than the sum of its proper divisors (38841106).

72615734 is a wasteful number, since it uses less digits than its factorization.

72615734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844414.

The product of its digits is 35280, while the sum is 35.

The square root of 72615734 is about 8521.4866073943. The cubic root of 72615734 is about 417.1993058768.

The spelling of 72615734 in words is "seventy-two million, six hundred fifteen thousand, seven hundred thirty-four".