85940623 has 2 divisors, whose sum is σ = 85940624. Its totient is φ = 85940622.

The previous prime is 85940567. The next prime is 85940653. The reversal of 85940623 is 32604958.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85940623 - 2¹⁷ = 85809551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85940653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42970311 + 42970312.

It is an arithmetic number, because the mean of its divisors is an integer number (42970312).

Almost surely, 2^85940623 is an apocalyptic number.

85940623 is a deficient number, since it is larger than the sum of its proper divisors (1).

85940623 is an equidigital number, since it uses as much as digits as its factorization.

85940623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 85940623 is about 9270.4165494329. The cubic root of 85940623 is about 441.2988874403.

The spelling of 85940623 in words is "eighty-five million, nine hundred forty thousand, six hundred twenty-three".