73077231 has 4 divisors (see below), whose sum is σ = 97436312. Its totient is φ = 48718152.

The previous prime is 73077229. The next prime is 73077289. The reversal of 73077231 is 13277037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13277037 = 3 ⋅4425679.

It is not a de Polignac number, because 73077231 - 2¹ = 73077229 is a prime.

It is a super-2 number, since 2×73077231² = 10680563381254722, 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 (73077031) 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, 12179536 + ... + 12179541.

It is an arithmetic number, because the mean of its divisors is an integer number (24359078).

Almost surely, 2^73077231 is an apocalyptic number.

73077231 is a deficient number, since it is larger than the sum of its proper divisors (24359081).

73077231 is a wasteful number, since it uses less digits than its factorization.

73077231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24359080.

The product of its (nonzero) digits is 6174, while the sum is 30.

The square root of 73077231 is about 8548.5221529806. The cubic root of 73077231 is about 418.0812533299.

The spelling of 73077231 in words is "seventy-three million, seventy-seven thousand, two hundred thirty-one".