70878072 has 32 divisors (see below), whose sum is σ = 177552000. Its totient is φ = 23578464.

The previous prime is 70878047. The next prime is 70878077. The reversal of 70878072 is 27087807.

It is a self number, because there is not a number n which added to its sum of digits gives 70878072.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70878077) 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, 10429 + ... + 15827.

It is an arithmetic number, because the mean of its divisors is an integer number (5548500).

Almost surely, 2^70878072 is an apocalyptic number.

It is an amenable number.

70878072 is an abundant number, since it is smaller than the sum of its proper divisors (106673928).

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

70878072 is a wasteful number, since it uses less digits than its factorization.

70878072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5955 (or 5951 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The square root of 70878072 is about 8418.9115686055. The cubic root of 70878072 is about 413.8446054996.

The spelling of 70878072 in words is "seventy million, eight hundred seventy-eight thousand, seventy-two".