69742645 has 16 divisors (see below), whose sum is σ = 97077888. Its totient is φ = 47108160.

The previous prime is 69742627. The next prime is 69742649. The reversal of 69742645 is 54624796.

It is a happy number.

It is not a de Polignac number, because 69742645 - 2¹³ = 69734453 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 (69742649) 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, 12526 + ... + 17215.

It is an arithmetic number, because the mean of its divisors is an integer number (6067368).

Almost surely, 2^69742645 is an apocalyptic number.

It is an amenable number.

69742645 is a deficient number, since it is larger than the sum of its proper divisors (27335243).

69742645 is a wasteful number, since it uses less digits than its factorization.

69742645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29820.

The product of its digits is 362880, while the sum is 43.

The square root of 69742645 is about 8351.2062003042. The cubic root of 69742645 is about 411.6228462447.

The spelling of 69742645 in words is "sixty-nine million, seven hundred forty-two thousand, six hundred forty-five".