108778506 has 16 divisors (see below), whose sum is σ = 219670464. Its totient is φ = 35907264.

The previous prime is 108778499. The next prime is 108778513. The reversal of 108778506 is 605877801.

It is an interprime number because it is at equal distance from previous prime (108778499) and next prime (108778513).

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, 87391 + ... + 88626.

It is an arithmetic number, because the mean of its divisors is an integer number (13729404).

Almost surely, 2^108778506 is an apocalyptic number.

108778506 is an abundant number, since it is smaller than the sum of its proper divisors (110891958).

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

108778506 is a wasteful number, since it uses less digits than its factorization.

108778506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176125.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 108778506 is about 10429.6934758410. The cubic root of 108778506 is about 477.3618375342.

The spelling of 108778506 in words is "one hundred eight million, seven hundred seventy-eight thousand, five hundred six".