73814945 has 8 divisors (see below), whose sum is σ = 88908840. Its totient is φ = 58831360.

The previous prime is 73814933. The next prime is 73814953. The reversal of 73814945 is 54941837.

It can be written as a sum of positive squares in 4 ways, for example, as 3389281 + 70425664 = 1841^2 + 8392^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73814945 - 2⁴ = 73814929 is a prime.

It is a super-2 number, since 2×73814945² = 10897292210706050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26096 + ... + 28785.

It is an arithmetic number, because the mean of its divisors is an integer number (11113605).

Almost surely, 2^73814945 is an apocalyptic number.

It is an amenable number.

73814945 is a deficient number, since it is larger than the sum of its proper divisors (15093895).

73814945 is a wasteful number, since it uses less digits than its factorization.

73814945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55155.

The product of its digits is 120960, while the sum is 41.

The square root of 73814945 is about 8591.5624306642. The cubic root of 73814945 is about 419.4833878664.

The spelling of 73814945 in words is "seventy-three million, eight hundred fourteen thousand, nine hundred forty-five".