70743680 has 64 divisors (see below), whose sum is σ = 193294080. Its totient is φ = 24253440.

The previous prime is 70743661. The next prime is 70743683. The reversal of 70743680 is 8634707.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 70743680.

It is not an unprimeable number, because it can be changed into a prime (70743683) 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, 3416 + ... + 12375.

It is an arithmetic number, because the mean of its divisors is an integer number (3020220).

Almost surely, 2^70743680 is an apocalyptic number.

70743680 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70743680 is an abundant number, since it is smaller than the sum of its proper divisors (122550400).

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

70743680 is a wasteful number, since it uses less digits than its factorization.

70743680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15817 (or 15805 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 70743680 is about 8410.9262272356. The cubic root of 70743680 is about 413.5828762519.

The spelling of 70743680 in words is "seventy million, seven hundred forty-three thousand, six hundred eighty".