69042457 has 8 divisors (see below), whose sum is σ = 79749792. Its totient is φ = 59073600.

The previous prime is 69042439. The next prime is 69042461. The reversal of 69042457 is 75424096.

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

It is a cyclic number.

It is not a de Polignac number, because 69042457 - 2⁷ = 69042329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69042427) 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, 184419 + ... + 184792.

It is an arithmetic number, because the mean of its divisors is an integer number (9968724).

Almost surely, 2^69042457 is an apocalyptic number.

It is an amenable number.

69042457 is a deficient number, since it is larger than the sum of its proper divisors (10707335).

69042457 is a wasteful number, since it uses less digits than its factorization.

69042457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369239.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 69042457 is about 8309.1790809923. The cubic root of 69042457 is about 410.2407014145.

The spelling of 69042457 in words is "sixty-nine million, forty-two thousand, four hundred fifty-seven".