73997461 has 2 divisors, whose sum is σ = 73997462. Its totient is φ = 73997460.

The previous prime is 73997459. The next prime is 73997467. The reversal of 73997461 is 16479937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 140625 = 8594^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 73997461 - 2¹ = 73997459 is a prime.

It is a super-3 number, since 3×73997461³ (a number of 25 digits) contains 333 as substring.

Together with 73997459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73997467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36998730 + 36998731.

It is an arithmetic number, because the mean of its divisors is an integer number (36998731).

Almost surely, 2^73997461 is an apocalyptic number.

It is an amenable number.

73997461 is a deficient number, since it is larger than the sum of its proper divisors (1).

73997461 is an equidigital number, since it uses as much as digits as its factorization.

73997461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The square root of 73997461 is about 8602.1776893994. The cubic root of 73997461 is about 419.8288437150.

The spelling of 73997461 in words is "seventy-three million, nine hundred ninety-seven thousand, four hundred sixty-one".