73397869 has 4 divisors (see below), whose sum is σ = 75928860. Its totient is φ = 70866880.

The previous prime is 73397843. The next prime is 73397881. The reversal of 73397869 is 96879337.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40793769 + 32604100 = 6387^2 + 5710^2 .

It is a cyclic number.

It is not a de Polignac number, because 73397869 - 2¹³ = 73389677 is a prime.

It is a super-2 number, since 2×73397869² = 10774494347482322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73397809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1265452 + ... + 1265509.

It is an arithmetic number, because the mean of its divisors is an integer number (18982215).

Almost surely, 2^73397869 is an apocalyptic number.

It is an amenable number.

73397869 is a deficient number, since it is larger than the sum of its proper divisors (2530991).

73397869 is a wasteful number, since it uses less digits than its factorization.

73397869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530990.

The product of its digits is 1714608, while the sum is 52.

The square root of 73397869 is about 8567.2556282628. The cubic root of 73397869 is about 418.6918272498.

The spelling of 73397869 in words is "seventy-three million, three hundred ninety-seven thousand, eight hundred sixty-nine".