82961623 has 2 divisors, whose sum is σ = 82961624. Its totient is φ = 82961622.

The previous prime is 82961603. The next prime is 82961633. The reversal of 82961623 is 32616928.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82961623 - 2⁵ = 82961591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82961603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41480811 + 41480812.

It is an arithmetic number, because the mean of its divisors is an integer number (41480812).

Almost surely, 2^82961623 is an apocalyptic number.

82961623 is a deficient number, since it is larger than the sum of its proper divisors (1).

82961623 is an equidigital number, since it uses as much as digits as its factorization.

82961623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 82961623 is about 9108.3271241211. The cubic root of 82961623 is about 436.1398265858.

The spelling of 82961623 in words is "eighty-two million, nine hundred sixty-one thousand, six hundred twenty-three".