74828357 has 2 divisors, whose sum is σ = 74828358. Its totient is φ = 74828356.

The previous prime is 74828329. The next prime is 74828359. The reversal of 74828357 is 75382847.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45819361 + 29008996 = 6769^2 + 5386^2 .

It is a cyclic number.

It is not a de Polignac number, because 74828357 - 2¹⁸ = 74566213 is a prime.

It is a super-2 number, since 2×74828357² = 11198566022638898, which contains 22 as substring.

Together with 74828359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74828359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37414178 + 37414179.

It is an arithmetic number, because the mean of its divisors is an integer number (37414179).

Almost surely, 2^74828357 is an apocalyptic number.

It is an amenable number.

74828357 is a deficient number, since it is larger than the sum of its proper divisors (1).

74828357 is an equidigital number, since it uses as much as digits as its factorization.

74828357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 44.

The square root of 74828357 is about 8650.3385482882. The cubic root of 74828357 is about 421.3943773353.

The spelling of 74828357 in words is "seventy-four million, eight hundred twenty-eight thousand, three hundred fifty-seven".