69472109 has 4 divisors (see below), whose sum is σ = 79396704. Its totient is φ = 59547516.

The previous prime is 69472097. The next prime is 69472111. The reversal of 69472109 is 90127496.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 69472109 - 2⁴ = 69472093 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69472159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4962287 + ... + 4962300.

It is an arithmetic number, because the mean of its divisors is an integer number (19849176).

Almost surely, 2^69472109 is an apocalyptic number.

It is an amenable number.

69472109 is a deficient number, since it is larger than the sum of its proper divisors (9924595).

69472109 is an equidigital number, since it uses as much as digits as its factorization.

69472109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9924594.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 69472109 is about 8334.9930413888. The cubic root of 69472109 is about 411.0899198043.

The spelling of 69472109 in words is "sixty-nine million, four hundred seventy-two thousand, one hundred nine".