87473597 has 2 divisors, whose sum is σ = 87473598. Its totient is φ = 87473596.

The previous prime is 87473569. The next prime is 87473681. The reversal of 87473597 is 79537478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86007076 + 1466521 = 9274^2 + 1211^2 .

It is a cyclic number.

It is not a de Polignac number, because 87473597 - 2¹⁰ = 87472573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87473527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43736798 + 43736799.

It is an arithmetic number, because the mean of its divisors is an integer number (43736799).

Almost surely, 2^87473597 is an apocalyptic number.

It is an amenable number.

87473597 is a deficient number, since it is larger than the sum of its proper divisors (1).

87473597 is an equidigital number, since it uses as much as digits as its factorization.

87473597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 50.

The square root of 87473597 is about 9352.7320607403. The cubic root of 87473597 is about 443.9073424184.

The spelling of 87473597 in words is "eighty-seven million, four hundred seventy-three thousand, five hundred ninety-seven".