73078631 has 8 divisors (see below), whose sum is σ = 77456160. Its totient is φ = 68709888.

The previous prime is 73078627. The next prime is 73078669. The reversal of 73078631 is 13687037.

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

It is a cyclic number.

It is not a de Polignac number, because 73078631 - 2² = 73078627 is a prime.

It is a super-2 number, since 2×73078631² = 10680972617668322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73078591 and 73078600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73078331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23870 + ... + 26756.

It is an arithmetic number, because the mean of its divisors is an integer number (9682020).

Almost surely, 2^73078631 is an apocalyptic number.

73078631 is a deficient number, since it is larger than the sum of its proper divisors (4377529).

73078631 is a wasteful number, since it uses less digits than its factorization.

73078631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4393.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 73078631 is about 8548.6040380872. The cubic root of 73078631 is about 418.0839231538.

The spelling of 73078631 in words is "seventy-three million, seventy-eight thousand, six hundred thirty-one".