73678631 has 8 divisors (see below), whose sum is σ = 79441824. Its totient is φ = 67929120.

The previous prime is 73678621. The next prime is 73678673. The reversal of 73678631 is 13687637.

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 73678631 - 2⁶ = 73678567 is a prime.

It is a super-3 number, since 3×73678631³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73678601) 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, 9641 + ... + 15501.

It is an arithmetic number, because the mean of its divisors is an integer number (9930228).

Almost surely, 2^73678631 is an apocalyptic number.

73678631 is a deficient number, since it is larger than the sum of its proper divisors (5763193).

73678631 is a wasteful number, since it uses less digits than its factorization.

73678631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6841.

The product of its digits is 127008, while the sum is 41.

The square root of 73678631 is about 8583.6257490643. The cubic root of 73678631 is about 419.2250088724.

The spelling of 73678631 in words is "seventy-three million, six hundred seventy-eight thousand, six hundred thirty-one".