69897407 has 8 divisors (see below), whose sum is σ = 71383680. Its totient is φ = 68417440.

The previous prime is 69897293. The next prime is 69897419. The reversal of 69897407 is 70479896.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 69897407 - 2²⁰ = 68848831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69857407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25682 + ... + 28272.

It is an arithmetic number, because the mean of its divisors is an integer number (8922960).

Almost surely, 2^69897407 is an apocalyptic number.

69897407 is a deficient number, since it is larger than the sum of its proper divisors (1486273).

69897407 is a wasteful number, since it uses less digits than its factorization.

69897407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153.

The product of its (nonzero) digits is 762048, while the sum is 50.

The square root of 69897407 is about 8360.4669127986. The cubic root of 69897407 is about 411.9270910512.

The spelling of 69897407 in words is "sixty-nine million, eight hundred ninety-seven thousand, four hundred seven".