87246631 has 2 divisors, whose sum is σ = 87246632. Its totient is φ = 87246630.

The previous prime is 87246619. The next prime is 87246641. The reversal of 87246631 is 13664278.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87246631 - 2¹¹ = 87244583 is a prime.

It is a super-2 number, since 2×87246631² = 15223949241700322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87246641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43623315 + 43623316.

It is an arithmetic number, because the mean of its divisors is an integer number (43623316).

Almost surely, 2^87246631 is an apocalyptic number.

87246631 is a deficient number, since it is larger than the sum of its proper divisors (1).

87246631 is an equidigital number, since it uses as much as digits as its factorization.

87246631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 87246631 is about 9340.5905059584. The cubic root of 87246631 is about 443.5230773648.

The spelling of 87246631 in words is "eighty-seven million, two hundred forty-six thousand, six hundred thirty-one".