78479357 has 8 divisors (see below), whose sum is σ = 85834272. Its totient is φ = 71161200.

The previous prime is 78479351. The next prime is 78479369. The reversal of 78479357 is 75397487.

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

It is not a de Polignac number, because 78479357 - 2⁴ = 78479341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78479351) 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, 4619 + ... + 13352.

It is an arithmetic number, because the mean of its divisors is an integer number (10729284).

Almost surely, 2^78479357 is an apocalyptic number.

It is an amenable number.

78479357 is a deficient number, since it is larger than the sum of its proper divisors (7354915).

78479357 is a wasteful number, since it uses less digits than its factorization.

78479357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18379.

The product of its digits is 1481760, while the sum is 50.

The square root of 78479357 is about 8858.8575448531. The cubic root of 78479357 is about 428.1393499870.

The spelling of 78479357 in words is "seventy-eight million, four hundred seventy-nine thousand, three hundred fifty-seven".