78350506 has 16 divisors (see below), whose sum is σ = 128094624. Its totient is φ = 35725104.

The previous prime is 78350453. The next prime is 78350513. The reversal of 78350506 is 60505387.

It is a happy number.

It is a super-2 number, since 2×78350506² = 12277603580912072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15996 + ... + 20311.

It is an arithmetic number, because the mean of its divisors is an integer number (8005914).

Almost surely, 2^78350506 is an apocalyptic number.

78350506 is a deficient number, since it is larger than the sum of its proper divisors (49744118).

78350506 is a wasteful number, since it uses less digits than its factorization.

78350506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36405.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 78350506 is about 8851.5821184690. The cubic root of 78350506 is about 427.9049087083.

The spelling of 78350506 in words is "seventy-eight million, three hundred fifty thousand, five hundred six".