42653719 has 2 divisors, whose sum is σ = 42653720. Its totient is φ = 42653718.

The previous prime is 42653687. The next prime is 42653729. The reversal of 42653719 is 91735624.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42653719 - 2⁵ = 42653687 is a prime.

It is a super-2 number, since 2×42653719² = 3638679489061922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42653729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21326859 + 21326860.

It is an arithmetic number, because the mean of its divisors is an integer number (21326860).

Almost surely, 2^42653719 is an apocalyptic number.

42653719 is a deficient number, since it is larger than the sum of its proper divisors (1).

42653719 is an equidigital number, since it uses as much as digits as its factorization.

42653719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 42653719 is about 6530.9814729488. The cubic root of 42653719 is about 349.3968359789.

It can be divided in two parts, 426 and 53719, that added together give a palindrome (54145).

The spelling of 42653719 in words is "forty-two million, six hundred fifty-three thousand, seven hundred nineteen".