7826478 has 16 divisors (see below), whose sum is σ = 17076096. Its totient is φ = 2371640.

The previous prime is 7826459. The next prime is 7826513. The reversal of 7826478 is 8746287.

It is a super-2 number, since 2×7826478² = 122507515768968, which contains 22 as substring.

It is a congruent number.

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, 59226 + ... + 59357.

It is an arithmetic number, because the mean of its divisors is an integer number (1067256).

Almost surely, 2^7826478 is an apocalyptic number.

7826478 is an abundant number, since it is smaller than the sum of its proper divisors (9249618).

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

7826478 is a wasteful number, since it uses less digits than its factorization.

7826478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118599.

The product of its digits is 150528, while the sum is 42.

The square root of 7826478 is about 2797.5843150833. The cubic root of 7826478 is about 198.5434006791.

It can be divided in two parts, 782 and 6478, that added together give a triangular number (7260 = T₁₂₀).

The spelling of 7826478 in words is "seven million, eight hundred twenty-six thousand, four hundred seventy-eight".