70249984 has 80 divisors (see below), whose sum is σ = 169998048. Its totient is φ = 28311552.

The previous prime is 70249961. The next prime is 70249997. The reversal of 70249984 is 48994207.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 70249984.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60352 + ... + 61504.

Almost surely, 2^70249984 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 70249984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84999024).

70249984 is an abundant number, since it is smaller than the sum of its proper divisors (99748064).

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

70249984 is a wasteful number, since it uses less digits than its factorization.

70249984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1179 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 70249984 is about 8381.5263526401. The cubic root of 70249984 is about 412.6185449312.

The spelling of 70249984 in words is "seventy million, two hundred forty-nine thousand, nine hundred eighty-four".