69396641 has 6 divisors (see below), whose sum is σ = 71143926. Its totient is φ = 67652000.

The previous prime is 69396637. The next prime is 69396643. The reversal of 69396641 is 14669396.

It can be written as a sum of positive squares in 3 ways, for example, as 24453025 + 44943616 = 4945^2 + 6704^2 .

It is not a de Polignac number, because 69396641 - 2² = 69396637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69396592 and 69396601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69396643) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52691 + ... + 53991.

It is an arithmetic number, because the mean of its divisors is an integer number (11857321).

Almost surely, 2^69396641 is an apocalyptic number.

It is an amenable number.

69396641 is a deficient number, since it is larger than the sum of its proper divisors (1747285).

69396641 is an frugal number, since it uses more digits than its factorization.

69396641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643 (or 1342 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 69396641 is about 8330.4646329001. The cubic root of 69396641 is about 410.9410093268.

The spelling of 69396641 in words is "sixty-nine million, three hundred ninety-six thousand, six hundred forty-one".