42192679 has 2 divisors, whose sum is σ = 42192680. Its totient is φ = 42192678.

The previous prime is 42192677. The next prime is 42192697. The reversal of 42192679 is 97629124.

Together with next prime (42192697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42192679 - 2¹ = 42192677 is a prime.

It is a super-2 number, since 2×42192679² = 3560444322394082, which contains 22 as substring.

Together with 42192677, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42192677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21096339 + 21096340.

It is an arithmetic number, because the mean of its divisors is an integer number (21096340).

Almost surely, 2^42192679 is an apocalyptic number.

42192679 is a deficient number, since it is larger than the sum of its proper divisors (1).

42192679 is an equidigital number, since it uses as much as digits as its factorization.

42192679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 42192679 is about 6495.5891957543. The cubic root of 42192679 is about 348.1334071461.

It can be divided in two parts, 42 and 192679, that added together give a square (192721 = 439²).

The spelling of 42192679 in words is "forty-two million, one hundred ninety-two thousand, six hundred seventy-nine".