70667928 has 96 divisors (see below), whose sum is σ = 201670560. Its totient is φ = 22325760.

The previous prime is 70667923. The next prime is 70667939. The reversal of 70667928 is 82976607.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70667923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108901 + ... + 109547.

It is an arithmetic number, because the mean of its divisors is an integer number (2100735).

Almost surely, 2^70667928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70667928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100835280).

70667928 is an abundant number, since it is smaller than the sum of its proper divisors (131002632).

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

70667928 is a wasteful number, since it uses less digits than its factorization.

70667928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 70667928 is about 8406.4218309576. The cubic root of 70667928 is about 413.4352026634.

The spelling of 70667928 in words is "seventy million, six hundred sixty-seven thousand, nine hundred twenty-eight".