74949761 has 2 divisors, whose sum is σ = 74949762. Its totient is φ = 74949760.

The previous prime is 74949733. The next prime is 74949769. The reversal of 74949761 is 16794947.

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., 60357361 + 14592400 = 7769^2 + 3820^2 .

It is a cyclic number.

It is not a de Polignac number, because 74949761 - 2⁶ = 74949697 is a prime.

It is not a weakly prime, because it can be changed into another prime (74949769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37474880 + 37474881.

It is an arithmetic number, because the mean of its divisors is an integer number (37474881).

Almost surely, 2^74949761 is an apocalyptic number.

It is an amenable number.

74949761 is a deficient number, since it is larger than the sum of its proper divisors (1).

74949761 is an equidigital number, since it uses as much as digits as its factorization.

74949761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 47.

The square root of 74949761 is about 8657.3530019285. The cubic root of 74949761 is about 421.6221489209.

The spelling of 74949761 in words is "seventy-four million, nine hundred forty-nine thousand, seven hundred sixty-one".