70129746 has 16 divisors (see below), whose sum is σ = 155844000. Its totient is φ = 23376564.

The previous prime is 70129733. The next prime is 70129747. The reversal of 70129746 is 64792107.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 70129746.

It is not an unprimeable number, because it can be changed into a prime (70129747) 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, 649296 + ... + 649403.

It is an arithmetic number, because the mean of its divisors is an integer number (9740250).

Almost surely, 2^70129746 is an apocalyptic number.

70129746 is an abundant number, since it is smaller than the sum of its proper divisors (85714254).

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

70129746 is a wasteful number, since it uses less digits than its factorization.

70129746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298710 (or 1298704 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 70129746 is about 8374.3504822762. The cubic root of 70129746 is about 412.3830015293.

The spelling of 70129746 in words is "seventy million, one hundred twenty-nine thousand, seven hundred forty-six".