70387968 has 72 divisors (see below), whose sum is σ = 214113088. Its totient is φ = 20109312.

The previous prime is 70387963. The next prime is 70387969. The reversal of 70387968 is 86978307.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (70387963) 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, 1171 + ... + 11922.

Almost surely, 2^70387968 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 70387968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107056544).

70387968 is an abundant number, since it is smaller than the sum of its proper divisors (143725120).

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

70387968 is a wasteful number, since it uses less digits than its factorization.

70387968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13119 (or 13105 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 70387968 is about 8389.7537508559. The cubic root of 70387968 is about 412.8885213681. Note that the first 3 decimals are identical.

The spelling of 70387968 in words is "seventy million, three hundred eighty-seven thousand, nine hundred sixty-eight".