78726846 has 16 divisors (see below), whose sum is σ = 171767808. Its totient is φ = 23856600.

The previous prime is 78726841. The next prime is 78726853. The reversal of 78726846 is 64862787.

It is a super-2 number, since 2×78726846² = 12395832562215432, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78726795 and 78726804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78726841) 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, 596350 + ... + 596481.

It is an arithmetic number, because the mean of its divisors is an integer number (10735488).

Almost surely, 2^78726846 is an apocalyptic number.

78726846 is an abundant number, since it is smaller than the sum of its proper divisors (93040962).

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

78726846 is a wasteful number, since it uses less digits than its factorization.

78726846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192847.

The product of its digits is 903168, while the sum is 48.

The square root of 78726846 is about 8872.8149986349. The cubic root of 78726846 is about 428.5889314439.

The spelling of 78726846 in words is "seventy-eight million, seven hundred twenty-six thousand, eight hundred forty-six".