78350456 has 16 divisors (see below), whose sum is σ = 147026040. Its totient is φ = 39143520.

The previous prime is 78350453. The next prime is 78350513. The reversal of 78350456 is 65405387.

It is a super-2 number, since 2×78350456² = 12277587910815872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78350453) 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, 9050 + ... + 15446.

Almost surely, 2^78350456 is an apocalyptic number.

It is an amenable number.

78350456 is a deficient number, since it is larger than the sum of its proper divisors (68675584).

78350456 is a wasteful number, since it uses less digits than its factorization.

78350456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7934 (or 7930 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 78350456 is about 8851.5792941147. The cubic root of 78350456 is about 427.9048176847.

The spelling of 78350456 in words is "seventy-eight million, three hundred fifty thousand, four hundred fifty-six".