72285723 has 16 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 48117960.

The previous prime is 72285713. The next prime is 72285767. The reversal of 72285723 is 32758227.

It is a happy number.

It is not a de Polignac number, because 72285723 - 2⁵ = 72285691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72285713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21058 + ... + 24248.

It is an arithmetic number, because the mean of its divisors is an integer number (6703200).

Almost surely, 2^72285723 is an apocalyptic number.

72285723 is a deficient number, since it is larger than the sum of its proper divisors (34965477).

72285723 is a wasteful number, since it uses less digits than its factorization.

72285723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039 (or 4033 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 72285723 is about 8502.1010932592. The cubic root of 72285723 is about 416.5663417835.

It can be divided in two parts, 7 and 2285723, that multiplied together give a palindrome (16000061).

The spelling of 72285723 in words is "seventy-two million, two hundred eighty-five thousand, seven hundred twenty-three".