94778121 has 8 divisors (see below), whose sum is σ = 126433504. Its totient is φ = 63154080.

The previous prime is 94778083. The next prime is 94778153. The reversal of 94778121 is 12187749.

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

It is not a de Polignac number, because 94778121 - 2⁷ = 94777993 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 94778121.

It is not an unprimeable number, because it can be changed into a prime (94778161) 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, 486 + ... + 13776.

It is an arithmetic number, because the mean of its divisors is an integer number (15804188).

Almost surely, 2^94778121 is an apocalyptic number.

It is an amenable number.

94778121 is a deficient number, since it is larger than the sum of its proper divisors (31655383).

94778121 is a wasteful number, since it uses less digits than its factorization.

94778121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15671.

The product of its digits is 28224, while the sum is 39.

The square root of 94778121 is about 9735.4055385485. The cubic root of 94778121 is about 455.9347542460.

The spelling of 94778121 in words is "ninety-four million, seven hundred seventy-eight thousand, one hundred twenty-one".