70921674 has 48 divisors (see below), whose sum is σ = 159842592. Its totient is φ = 22706784.

The previous prime is 70921667. The next prime is 70921679. The reversal of 70921674 is 47612907.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (70921679) 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 23 ways as a sum of consecutive naturals, for example, 54637 + ... + 55919.

It is an arithmetic number, because the mean of its divisors is an integer number (3330054).

Almost surely, 2^70921674 is an apocalyptic number.

70921674 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70921674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79921296).

70921674 is an abundant number, since it is smaller than the sum of its proper divisors (88920918).

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

70921674 is a wasteful number, since it uses less digits than its factorization.

70921674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411 (or 1408 counting only the distinct ones).

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

The square root of 70921674 is about 8421.5006976192. The cubic root of 70921674 is about 413.9294495758.

The spelling of 70921674 in words is "seventy million, nine hundred twenty-one thousand, six hundred seventy-four".