78265926 has 48 divisors (see below), whose sum is σ = 186220944. Its totient is φ = 24551424.

The previous prime is 78265903. The next prime is 78265961. The reversal of 78265926 is 62956287.

It is a super-2 number, since 2×78265926² = 12251110345274952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3526 + ... + 12998.

It is an arithmetic number, because the mean of its divisors is an integer number (3879603).

Almost surely, 2^78265926 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78265926, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93110472).

78265926 is an abundant number, since it is smaller than the sum of its proper divisors (107955018).

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

78265926 is a wasteful number, since it uses less digits than its factorization.

78265926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507 (or 9495 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 78265926 is about 8846.8031514214. The cubic root of 78265926 is about 427.7508776748.

The spelling of 78265926 in words is "seventy-eight million, two hundred sixty-five thousand, nine hundred twenty-six".