74762981 has 2 divisors, whose sum is σ = 74762982. Its totient is φ = 74762980.

The previous prime is 74762959. The next prime is 74762983. The reversal of 74762981 is 18926747.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74666881 + 96100 = 8641^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 74762981 - 2¹⁴ = 74746597 is a prime.

It is a super-3 number, since 3×74762981³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 74762983, 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 (74762983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37381490 + 37381491.

It is an arithmetic number, because the mean of its divisors is an integer number (37381491).

Almost surely, 2^74762981 is an apocalyptic number.

It is an amenable number.

74762981 is a deficient number, since it is larger than the sum of its proper divisors (1).

74762981 is an equidigital number, since it uses as much as digits as its factorization.

74762981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 74762981 is about 8646.5589109194. The cubic root of 74762981 is about 421.2716203715.

The spelling of 74762981 in words is "seventy-four million, seven hundred sixty-two thousand, nine hundred eighty-one".