85032631 has 2 divisors, whose sum is σ = 85032632. Its totient is φ = 85032630.

The previous prime is 85032599. The next prime is 85032637. The reversal of 85032631 is 13623058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85032631 - 2⁵ = 85032599 is a prime.

It is a super-2 number, since 2×85032631² = 14461096669564322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85032631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85032637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42516315 + 42516316.

It is an arithmetic number, because the mean of its divisors is an integer number (42516316).

Almost surely, 2^85032631 is an apocalyptic number.

85032631 is a deficient number, since it is larger than the sum of its proper divisors (1).

85032631 is an equidigital number, since it uses as much as digits as its factorization.

85032631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 85032631 is about 9221.3139519268. The cubic root of 85032631 is about 439.7392239191.

Adding to 85032631 its reverse (13623058), we get a palindrome (98655689).

The spelling of 85032631 in words is "eighty-five million, thirty-two thousand, six hundred thirty-one".