88419769 has 2 divisors, whose sum is σ = 88419770. Its totient is φ = 88419768.

The previous prime is 88419757. The next prime is 88419791. The reversal of 88419769 is 96791488.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85322169 + 3097600 = 9237^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 88419769 - 2⁷ = 88419641 is a prime.

It is a super-2 number, since 2×88419769² = 15636111100026722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (88419169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44209884 + 44209885.

It is an arithmetic number, because the mean of its divisors is an integer number (44209885).

Almost surely, 2^88419769 is an apocalyptic number.

It is an amenable number.

88419769 is a deficient number, since it is larger than the sum of its proper divisors (1).

88419769 is an equidigital number, since it uses as much as digits as its factorization.

88419769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 52.

The square root of 88419769 is about 9403.1786646857. The cubic root of 88419769 is about 445.5021373798.

The spelling of 88419769 in words is "eighty-eight million, four hundred nineteen thousand, seven hundred sixty-nine".