69939472 has 60 divisors (see below), whose sum is σ = 145157376. Its totient is φ = 32607360.

The previous prime is 69939469. The next prime is 69939487. The reversal of 69939472 is 27493996.

It is a super-3 number, since 3×69939472³ (a number of 25 digits) contains 333 as substring.

Its product of digits (734832) is a multiple of the sum of its prime factors (216).

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, 678973 + ... + 679075.

Almost surely, 2^69939472 is an apocalyptic number.

69939472 is a gapful number since it is divisible by the number (62) 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 69939472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72578688).

69939472 is an abundant number, since it is smaller than the sum of its proper divisors (75217904).

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

69939472 is a wasteful number, since it uses less digits than its factorization.

69939472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 173 counting only the distinct ones).

The product of its digits is 734832, while the sum is 49.

The square root of 69939472 is about 8362.9822431953. The cubic root of 69939472 is about 412.0097085091.

The spelling of 69939472 in words is "sixty-nine million, nine hundred thirty-nine thousand, four hundred seventy-two".