78930534 has 16 divisors (see below), whose sum is σ = 158061888. Its totient is φ = 26276712.

The previous prime is 78930529. The next prime is 78930539. The reversal of 78930534 is 43503987.

It is an interprime number because it is at equal distance from previous prime (78930529) and next prime (78930539).

It is a junction number, because it is equal to n+sod(n) for n = 78930492 and 78930501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78930539) 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, 2992 + ... + 12915.

It is an arithmetic number, because the mean of its divisors is an integer number (9878868).

Almost surely, 2^78930534 is an apocalyptic number.

78930534 is an abundant number, since it is smaller than the sum of its proper divisors (79131354).

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

78930534 is a wasteful number, since it uses less digits than its factorization.

78930534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16739.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 78930534 is about 8884.2857900903. The cubic root of 78930534 is about 428.9582389351.

The spelling of 78930534 in words is "seventy-eight million, nine hundred thirty thousand, five hundred thirty-four".