70983432 has 128 divisors (see below), whose sum is σ = 224985600. Its totient is φ = 20542464.

The previous prime is 70983421. The next prime is 70983461. The reversal of 70983432 is 23438907.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46993 + ... + 48479.

It is an arithmetic number, because the mean of its divisors is an integer number (1757700).

Almost surely, 2^70983432 is an apocalyptic number.

70983432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70983432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112492800).

70983432 is an abundant number, since it is smaller than the sum of its proper divisors (154002168).

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

70983432 is a wasteful number, since it uses less digits than its factorization.

70983432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532 (or 1522 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 70983432 is about 8425.1665858902. The cubic root of 70983432 is about 414.0495634843.

The spelling of 70983432 in words is "seventy million, nine hundred eighty-three thousand, four hundred thirty-two".