87370501 has 2 divisors, whose sum is σ = 87370502. Its totient is φ = 87370500.

The previous prime is 87370477. The next prime is 87370511. The reversal of 87370501 is 10507378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85932900 + 1437601 = 9270^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 87370501 - 2⁵ = 87370469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87370511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43685250 + 43685251.

It is an arithmetic number, because the mean of its divisors is an integer number (43685251).

Almost surely, 2^87370501 is an apocalyptic number.

It is an amenable number.

87370501 is a deficient number, since it is larger than the sum of its proper divisors (1).

87370501 is an equidigital number, since it uses as much as digits as its factorization.

87370501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 87370501 is about 9347.2188911997. The cubic root of 87370501 is about 443.7328781068.

Adding to 87370501 its reverse (10507378), we get a palindrome (97877879).

The spelling of 87370501 in words is "eighty-seven million, three hundred seventy thousand, five hundred one".