74322013 has 2 divisors, whose sum is σ = 74322014. Its totient is φ = 74322012.

The previous prime is 74321999. The next prime is 74322023. The reversal of 74322013 is 31022347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57198969 + 17123044 = 7563^2 + 4138^2 .

It is an emirp because it is prime and its reverse (31022347) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74322013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74322023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37161006 + 37161007.

It is an arithmetic number, because the mean of its divisors is an integer number (37161007).

Almost surely, 2^74322013 is an apocalyptic number.

It is an amenable number.

74322013 is a deficient number, since it is larger than the sum of its proper divisors (1).

74322013 is an equidigital number, since it uses as much as digits as its factorization.

74322013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 74322013 is about 8621.0215751963. The cubic root of 74322013 is about 420.4417366749.

The spelling of 74322013 in words is "seventy-four million, three hundred twenty-two thousand, thirteen".