73997629 has 2 divisors, whose sum is σ = 73997630. Its totient is φ = 73997628.

The previous prime is 73997611. The next prime is 73997639. The reversal of 73997629 is 92679937.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70593604 + 3404025 = 8402^2 + 1845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73997629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73997639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36998814 + 36998815.

It is an arithmetic number, because the mean of its divisors is an integer number (36998815).

Almost surely, 2^73997629 is an apocalyptic number.

It is an amenable number.

73997629 is a deficient number, since it is larger than the sum of its proper divisors (1).

73997629 is an equidigital number, since it uses as much as digits as its factorization.

73997629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 52.

The square root of 73997629 is about 8602.1874543630. The cubic root of 73997629 is about 419.8291614340.

The spelling of 73997629 in words is "seventy-three million, nine hundred ninety-seven thousand, six hundred twenty-nine".