69405397 has 8 divisors (see below), whose sum is σ = 71288096. Its totient is φ = 67534992.

The previous prime is 69405383. The next prime is 69405403. The reversal of 69405397 is 79350496.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69405397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69405307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8998 + ... + 14824.

It is an arithmetic number, because the mean of its divisors is an integer number (8911012).

Almost surely, 2^69405397 is an apocalyptic number.

It is an amenable number.

69405397 is a deficient number, since it is larger than the sum of its proper divisors (1882699).

69405397 is a wasteful number, since it uses less digits than its factorization.

69405397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6147.

The product of its (nonzero) digits is 204120, while the sum is 43.

The square root of 69405397 is about 8330.9901572382. The cubic root of 69405397 is about 410.9582918547.

The spelling of 69405397 in words is "sixty-nine million, four hundred five thousand, three hundred ninety-seven".