69747138 has 48 divisors (see below), whose sum is σ = 160617600. Its totient is φ = 21811680.

The previous prime is 69747101. The next prime is 69747143. The reversal of 69747138 is 83174796.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 69747093 and 69747102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36343 + ... + 38213.

It is an arithmetic number, because the mean of its divisors is an integer number (3346200).

Almost surely, 2^69747138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69747138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80308800).

69747138 is an abundant number, since it is smaller than the sum of its proper divisors (90870462).

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

69747138 is a wasteful number, since it uses less digits than its factorization.

69747138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007 (or 2004 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 69747138 is about 8351.4751990292. The cubic root of 69747138 is about 411.6316853213.

The spelling of 69747138 in words is "sixty-nine million, seven hundred forty-seven thousand, one hundred thirty-eight".