74885477 has 2 divisors, whose sum is σ = 74885478. Its totient is φ = 74885476.

The previous prime is 74885381. The next prime is 74885483. The reversal of 74885477 is 77458847.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68326756 + 6558721 = 8266^2 + 2561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74885477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74885177) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37442738 + 37442739.

It is an arithmetic number, because the mean of its divisors is an integer number (37442739).

Almost surely, 2^74885477 is an apocalyptic number.

It is an amenable number.

74885477 is a deficient number, since it is larger than the sum of its proper divisors (1).

74885477 is an equidigital number, since it uses as much as digits as its factorization.

74885477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1756160, while the sum is 50.

The square root of 74885477 is about 8653.6395233451. The cubic root of 74885477 is about 421.5015734385.

The spelling of 74885477 in words is "seventy-four million, eight hundred eighty-five thousand, four hundred seventy-seven".