70923420 has 36 divisors (see below), whose sum is σ = 215134920. Its totient is φ = 18912864.

The previous prime is 70923389. The next prime is 70923451. The reversal of 70923420 is 2432907.

It is an interprime number because it is at equal distance from previous prime (70923389) and next prime (70923451).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196830 + ... + 197189.

It is an arithmetic number, because the mean of its divisors is an integer number (5975970).

Almost surely, 2^70923420 is an apocalyptic number.

It is an amenable number.

70923420 is an abundant number, since it is smaller than the sum of its proper divisors (144211500).

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

70923420 is a wasteful number, since it uses less digits than its factorization.

70923420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394034 (or 394029 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 70923420 is about 8421.6043602155. The cubic root of 70923420 is about 413.9328463507.

The spelling of 70923420 in words is "seventy million, nine hundred twenty-three thousand, four hundred twenty".