73997045 has 6 divisors (see below), whose sum is σ = 88819542. Its totient is φ = 59182248.

The previous prime is 73997017. The next prime is 73997047. The reversal of 73997045 is 54079937.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 59197636 + 14799409 = 7694^2 + 3847^2 .

It is not a de Polignac number, because 73997045 - 2¹⁶ = 73931509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73996987 and 73997005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73997047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17312 + ... + 21158.

It is an arithmetic number, because the mean of its divisors is an integer number (14803257).

Almost surely, 2^73997045 is an apocalyptic number.

It is an amenable number.

73997045 is a deficient number, since it is larger than the sum of its proper divisors (14822497).

73997045 is an frugal number, since it uses more digits than its factorization.

73997045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7699 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 73997045 is about 8602.1535094417. The cubic root of 73997045 is about 419.8280569802.

The spelling of 73997045 in words is "seventy-three million, nine hundred ninety-seven thousand, forty-five".