78310074 has 8 divisors (see below), whose sum is σ = 156620160. Its totient is φ = 26103356.

The previous prime is 78310049. The next prime is 78310103. The reversal of 78310074 is 47001387.

It is a happy number.

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

78310074 is an admirable number.

It is a super-2 number, since 2×78310074² = 12264935379770952, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6525834 + ... + 6525845.

It is an arithmetic number, because the mean of its divisors is an integer number (19577520).

Almost surely, 2^78310074 is an apocalyptic number.

78310074 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78310074 is a wasteful number, since it uses less digits than its factorization.

78310074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051684.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 78310074 is about 8849.2979382548. The cubic root of 78310074 is about 427.8312906850.

The spelling of 78310074 in words is "seventy-eight million, three hundred ten thousand, seventy-four".