74602081 has 2 divisors, whose sum is σ = 74602082. Its totient is φ = 74602080.

The previous prime is 74601983. The next prime is 74602097. The reversal of 74602081 is 18020647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73256481 + 1345600 = 8559^2 + 1160^2 .

It is an emirp because it is prime and its reverse (18020647) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74602081 - 2¹⁹ = 74077793 is a prime.

It is a super-2 number, since 2×74602081² = 11130940979061122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74608081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37301040 + 37301041.

It is an arithmetic number, because the mean of its divisors is an integer number (37301041).

Almost surely, 2^74602081 is an apocalyptic number.

It is an amenable number.

74602081 is a deficient number, since it is larger than the sum of its proper divisors (1).

74602081 is an equidigital number, since it uses as much as digits as its factorization.

74602081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 74602081 is about 8637.2496201048. The cubic root of 74602081 is about 420.9691922322.

The spelling of 74602081 in words is "seventy-four million, six hundred two thousand, eighty-one".