69913984 has 96 divisors (see below), whose sum is σ = 165350160. Its totient is φ = 29352960.

The previous prime is 69913937. The next prime is 69913993. The reversal of 69913984 is 48931996.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 445234 + ... + 445390.

Almost surely, 2^69913984 is an apocalyptic number.

69913984 is a gapful number since it is divisible by the number (64) 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 69913984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82675080).

69913984 is an abundant number, since it is smaller than the sum of its proper divisors (95436176).

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

69913984 is a wasteful number, since it uses less digits than its factorization.

69913984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 237 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 69913984 is about 8361.4582460238. The cubic root of 69913984 is about 411.9596529440.

The spelling of 69913984 in words is "sixty-nine million, nine hundred thirteen thousand, nine hundred eighty-four".