70479864 has 192 divisors, whose sum is σ = 243210240. Its totient is φ = 17936640.

The previous prime is 70479863. The next prime is 70479869. The reversal of 70479864 is 46897407.

It is a super-2 number, since 2×70479864² = 9934822458916992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70479863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202939 + ... + 203285.

It is an arithmetic number, because the mean of its divisors is an integer number (1266720).

Almost surely, 2^70479864 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 70479864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121605120).

70479864 is an abundant number, since it is smaller than the sum of its proper divisors (172730376).

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

70479864 is a wasteful number, since it uses less digits than its factorization.

70479864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 70479864 is about 8395.2286448911. The cubic root of 70479864 is about 413.0681273640.

The spelling of 70479864 in words is "seventy million, four hundred seventy-nine thousand, eight hundred sixty-four".