87392943 has 24 divisors (see below), whose sum is σ = 138440016. Its totient is φ = 52684800.

The previous prime is 87392933. The next prime is 87392993. The reversal of 87392943 is 34929378.

It is a happy number.

It is not a de Polignac number, because 87392943 - 2¹⁷ = 87261871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87392923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17263 + ... + 21743.

It is an arithmetic number, because the mean of its divisors is an integer number (5768334).

Almost surely, 2^87392943 is an apocalyptic number.

87392943 is a deficient number, since it is larger than the sum of its proper divisors (51047073).

87392943 is a wasteful number, since it uses less digits than its factorization.

87392943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695 (or 4692 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 87392943 is about 9348.4192781454. The cubic root of 87392943 is about 443.7708672856.

The spelling of 87392943 in words is "eighty-seven million, three hundred ninety-two thousand, nine hundred forty-three".