78975654 has 16 divisors (see below), whose sum is σ = 159580848. Its totient is φ = 26053632.

The previous prime is 78975653. The next prime is 78975683. The reversal of 78975654 is 45657987.

It is a junction number, because it is equal to n+sod(n) for n = 78975597 and 78975606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78975653) 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, 67267 + ... + 68430.

It is an arithmetic number, because the mean of its divisors is an integer number (9973803).

Almost surely, 2^78975654 is an apocalyptic number.

78975654 is an abundant number, since it is smaller than the sum of its proper divisors (80605194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78975654 is a wasteful number, since it uses less digits than its factorization.

78975654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135799.

The product of its digits is 2116800, while the sum is 51.

The square root of 78975654 is about 8886.8247422800. The cubic root of 78975654 is about 429.0399601988.

The spelling of 78975654 in words is "seventy-eight million, nine hundred seventy-five thousand, six hundred fifty-four".