78875802 has 64 divisors (see below), whose sum is σ = 187776000. Its totient is φ = 24467184.

The previous prime is 78875789. The next prime is 78875807. The reversal of 78875802 is 20857887.

It is a happy number.

It is a super-2 number, since 2×78875802² = 12442784282286408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78875807) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 59883 + ... + 61185.

It is an arithmetic number, because the mean of its divisors is an integer number (2934000).

Almost surely, 2^78875802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78875802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93888000).

78875802 is an abundant number, since it is smaller than the sum of its proper divisors (108900198).

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

78875802 is a wasteful number, since it uses less digits than its factorization.

78875802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392 (or 1386 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The square root of 78875802 is about 8881.2049858113. The cubic root of 78875802 is about 428.8590666213.

It can be divided in two parts, 7887 and 5802, that added together give a square (13689 = 117²).

The spelling of 78875802 in words is "seventy-eight million, eight hundred seventy-five thousand, eight hundred two".