87294073 has 4 divisors (see below), whose sum is σ = 87816960. Its totient is φ = 86771188.

The previous prime is 87294059. The next prime is 87294079. The reversal of 87294073 is 37049278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 87294073 - 2²⁵ = 53739641 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87294079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261193 + ... + 261526.

It is an arithmetic number, because the mean of its divisors is an integer number (21954240).

Almost surely, 2^87294073 is an apocalyptic number.

It is an amenable number.

87294073 is a deficient number, since it is larger than the sum of its proper divisors (522887).

87294073 is a wasteful number, since it uses less digits than its factorization.

87294073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522886.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 87294073 is about 9343.1297218866. The cubic root of 87294073 is about 443.6034541420.

The spelling of 87294073 in words is "eighty-seven million, two hundred ninety-four thousand, seventy-three".