87423723 has 12 divisors (see below), whose sum is σ = 127085088. Its totient is φ = 57910320.

The previous prime is 87423703. The next prime is 87423757. The reversal of 87423723 is 32732478.

It is not a de Polignac number, because 87423723 - 2¹⁷ = 87292651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87423703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29523 + ... + 32348.

It is an arithmetic number, because the mean of its divisors is an integer number (10590424).

Almost surely, 2^87423723 is an apocalyptic number.

87423723 is a deficient number, since it is larger than the sum of its proper divisors (39661365).

87423723 is a wasteful number, since it uses less digits than its factorization.

87423723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62034 (or 62031 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 87423723 is about 9350.0654008408. The cubic root of 87423723 is about 443.8229602179.

The spelling of 87423723 in words is "eighty-seven million, four hundred twenty-three thousand, seven hundred twenty-three".