69664454 has 16 divisors (see below), whose sum is σ = 105636960. Its totient is φ = 34454400.

The previous prime is 69664433. The next prime is 69664457. The reversal of 69664454 is 45446696.

It is a happy number.

It is a super-2 number, since 2×69664454² = 9706272302236232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69664457) 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, 117182 + ... + 117774.

It is an arithmetic number, because the mean of its divisors is an integer number (6602310).

Almost surely, 2^69664454 is an apocalyptic number.

69664454 is a deficient number, since it is larger than the sum of its proper divisors (35972506).

69664454 is a wasteful number, since it uses less digits than its factorization.

69664454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135.

The product of its digits is 622080, while the sum is 44.

The square root of 69664454 is about 8346.5234678877. The cubic root of 69664454 is about 411.4689603046.

The spelling of 69664454 in words is "sixty-nine million, six hundred sixty-four thousand, four hundred fifty-four".