87357473 has 24 divisors (see below), whose sum is σ = 107874816. Its totient is φ = 69220800.

The previous prime is 87357463. The next prime is 87357499. The reversal of 87357473 is 37475378.

87357473 = 352² + 353² + ... + 673².

It is not a de Polignac number, because 87357473 - 2¹⁰ = 87356449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87357433) 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, 114413 + ... + 115173.

It is an arithmetic number, because the mean of its divisors is an integer number (4494784).

Almost surely, 2^87357473 is an apocalyptic number.

It is an amenable number.

87357473 is a deficient number, since it is larger than the sum of its proper divisors (20517343).

87357473 is a wasteful number, since it uses less digits than its factorization.

87357473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 822 counting only the distinct ones).

The product of its digits is 493920, while the sum is 44.

The square root of 87357473 is about 9346.5219734402. The cubic root of 87357473 is about 443.7108216948.

The spelling of 87357473 in words is "eighty-seven million, three hundred fifty-seven thousand, four hundred seventy-three".