75628369 has 2 divisors, whose sum is σ = 75628370. Its totient is φ = 75628368.

The previous prime is 75628363. The next prime is 75628409. The reversal of 75628369 is 96382657.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51667344 + 23961025 = 7188^2 + 4895^2 .

It is a cyclic number.

It is not a de Polignac number, because 75628369 - 2⁵ = 75628337 is a prime.

It is a super-2 number, since 2×75628369² = 11439300395200322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75628363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37814184 + 37814185.

It is an arithmetic number, because the mean of its divisors is an integer number (37814185).

Almost surely, 2^75628369 is an apocalyptic number.

It is an amenable number.

75628369 is a deficient number, since it is larger than the sum of its proper divisors (1).

75628369 is an equidigital number, since it uses as much as digits as its factorization.

75628369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The square root of 75628369 is about 8696.4572671864. The cubic root of 75628369 is about 422.8908074730.

It can be divided in two parts, 7562 and 8369, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 75628369 in words is "seventy-five million, six hundred twenty-eight thousand, three hundred sixty-nine".