67976121 has 4 divisors (see below), whose sum is σ = 90634832. Its totient is φ = 45317412.

The previous prime is 67976113. The next prime is 67976159. The reversal of 67976121 is 12167976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 67976121 - 2³ = 67976113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67976121.

It is not an unprimeable number, because it can be changed into a prime (67976171) 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, 11329351 + ... + 11329356.

It is an arithmetic number, because the mean of its divisors is an integer number (22658708).

Almost surely, 2^67976121 is an apocalyptic number.

It is an amenable number.

67976121 is a deficient number, since it is larger than the sum of its proper divisors (22658711).

67976121 is a wasteful number, since it uses less digits than its factorization.

67976121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22658710.

The product of its digits is 31752, while the sum is 39.

The square root of 67976121 is about 8244.7632470557. The cubic root of 67976121 is about 408.1177272245.

The spelling of 67976121 in words is "sixty-seven million, nine hundred seventy-six thousand, one hundred twenty-one".