70989552 has 120 divisors (see below), whose sum is σ = 215182656. Its totient is φ = 21762048.

The previous prime is 70989521. The next prime is 70989553. The reversal of 70989552 is 25598907.

It is a happy number.

70989552 is a `hidden beast` number, since 7 + 0 + 98 + 9 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 70989498 and 70989507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70989553) 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, 114748 + ... + 115364.

Almost surely, 2^70989552 is an apocalyptic number.

70989552 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 70989552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107591328).

70989552 is an abundant number, since it is smaller than the sum of its proper divisors (144193104).

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

70989552 is a wasteful number, since it uses less digits than its factorization.

70989552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695 (or 686 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 70989552 is about 8425.5297756284. The cubic root of 70989552 is about 414.0614625544.

The spelling of 70989552 in words is "seventy million, nine hundred eighty-nine thousand, five hundred fifty-two".