74928253 has 2 divisors, whose sum is σ = 74928254. Its totient is φ = 74928252.

The previous prime is 74928247. The next prime is 74928263. The reversal of 74928253 is 35282947.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66879684 + 8048569 = 8178^2 + 2837^2 .

It is a cyclic number.

It is not a de Polignac number, because 74928253 - 2⁵ = 74928221 is a prime.

It is a super-2 number, since 2×74928253² = 11228486195264018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74928263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37464126 + 37464127.

It is an arithmetic number, because the mean of its divisors is an integer number (37464127).

Almost surely, 2^74928253 is an apocalyptic number.

It is an amenable number.

74928253 is a deficient number, since it is larger than the sum of its proper divisors (1).

74928253 is an equidigital number, since it uses as much as digits as its factorization.

74928253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 74928253 is about 8656.1107317317. The cubic root of 74928253 is about 421.5818147174.

The spelling of 74928253 in words is "seventy-four million, nine hundred twenty-eight thousand, two hundred fifty-three".