73474649 has 2 divisors, whose sum is σ = 73474650. Its totient is φ = 73474648.

The previous prime is 73474613. The next prime is 73474669. The reversal of 73474649 is 94647437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71284249 + 2190400 = 8443^2 + 1480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73474649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73474669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36737324 + 36737325.

It is an arithmetic number, because the mean of its divisors is an integer number (36737325).

Almost surely, 2^73474649 is an apocalyptic number.

It is an amenable number.

73474649 is a deficient number, since it is larger than the sum of its proper divisors (1).

73474649 is an equidigital number, since it uses as much as digits as its factorization.

73474649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 44.

The square root of 73474649 is about 8571.7354718867. The cubic root of 73474649 is about 418.8377713394.

The spelling of 73474649 in words is "seventy-three million, four hundred seventy-four thousand, six hundred forty-nine".