78056901 has 24 divisors (see below), whose sum is σ = 121998240. Its totient is φ = 47807136.

The previous prime is 78056873. The next prime is 78056933. The reversal of 78056901 is 10965087.

It is not a de Polignac number, because 78056901 - 2⁶ = 78056837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78056101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25090 + ... + 28028.

It is an arithmetic number, because the mean of its divisors is an integer number (5083260).

Almost surely, 2^78056901 is an apocalyptic number.

It is an amenable number.

78056901 is a deficient number, since it is larger than the sum of its proper divisors (43941339).

78056901 is a wasteful number, since it uses less digits than its factorization.

78056901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 78056901 is about 8834.9816638180. The cubic root of 78056901 is about 427.3697397327.

It can be divided in two parts, 7805 and 6901, that added together give a triangular number (14706 = T₁₇₁).

The spelling of 78056901 in words is "seventy-eight million, fifty-six thousand, nine hundred one".