69415385 has 16 divisors (see below), whose sum is σ = 90239184. Its totient is φ = 50956032.

The previous prime is 69415361. The next prime is 69415393. The reversal of 69415385 is 58351496.

It can be written as a sum of positive squares in 8 ways, for example, as 9259849 + 60155536 = 3043^2 + 7756^2 .

It is a cyclic number.

It is not a de Polignac number, because 69415385 - 2²² = 65221081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8159 + ... + 14331.

It is an arithmetic number, because the mean of its divisors is an integer number (5639949).

Almost surely, 2^69415385 is an apocalyptic number.

69415385 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69415385 is a deficient number, since it is larger than the sum of its proper divisors (20823799).

69415385 is a wasteful number, since it uses less digits than its factorization.

69415385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364.

The product of its digits is 129600, while the sum is 41.

The square root of 69415385 is about 8331.5895842270. The cubic root of 69415385 is about 410.9780043205.

The spelling of 69415385 in words is "sixty-nine million, four hundred fifteen thousand, three hundred eighty-five".