70904920 has 16 divisors (see below), whose sum is σ = 159536160. Its totient is φ = 28361952.

The previous prime is 70904917. The next prime is 70904927. The reversal of 70904920 is 2940907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70904927) 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 3 ways as a sum of consecutive naturals, for example, 886272 + ... + 886351.

It is an arithmetic number, because the mean of its divisors is an integer number (9971010).

Almost surely, 2^70904920 is an apocalyptic number.

It is an amenable number.

70904920 is an abundant number, since it is smaller than the sum of its proper divisors (88631240).

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

70904920 is a wasteful number, since it uses less digits than its factorization.

70904920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772634 (or 1772630 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 70904920 is about 8420.5059230429. The cubic root of 70904920 is about 413.8968524877.

It can be divided in two parts, 70904 and 920, that added together give a square (71824 = 268²).

The spelling of 70904920 in words is "seventy million, nine hundred four thousand, nine hundred twenty".