69663642 has 32 divisors (see below), whose sum is σ = 146240640. Its totient is φ = 22080960.

The previous prime is 69663641. The next prime is 69663653. The reversal of 69663642 is 24636696.

It is a junction number, because it is equal to n+sod(n) for n = 69663594 and 69663603.

It is not an unprimeable number, because it can be changed into a prime (69663641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23584 + ... + 26372.

It is an arithmetic number, because the mean of its divisors is an integer number (4570020).

Almost surely, 2^69663642 is an apocalyptic number.

69663642 is an abundant number, since it is smaller than the sum of its proper divisors (76576998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69663642 is a wasteful number, since it uses less digits than its factorization.

69663642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998.

The product of its digits is 279936, while the sum is 42.

The square root of 69663642 is about 8346.4748247389. The cubic root of 69663642 is about 411.4673616218.

The spelling of 69663642 in words is "sixty-nine million, six hundred sixty-three thousand, six hundred forty-two".