78895542 has 16 divisors (see below), whose sum is σ = 172135872. Its totient is φ = 23907720.

The previous prime is 78895541. The next prime is 78895559. The reversal of 78895542 is 24559887.

It is a junction number, because it is equal to n+sod(n) for n = 78895491 and 78895500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78895541) 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, 597628 + ... + 597759.

It is an arithmetic number, because the mean of its divisors is an integer number (10758492).

Almost surely, 2^78895542 is an apocalyptic number.

78895542 is an abundant number, since it is smaller than the sum of its proper divisors (93240330).

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

78895542 is a wasteful number, since it uses less digits than its factorization.

78895542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195403.

The product of its digits is 806400, while the sum is 48.

The square root of 78895542 is about 8882.3162519694. The cubic root of 78895542 is about 428.8948400424.

It can be divided in two parts, 7889 and 5542, that added together give a palindrome (13431).

The spelling of 78895542 in words is "seventy-eight million, eight hundred ninety-five thousand, five hundred forty-two".