69040957 has 4 divisors (see below), whose sum is σ = 69327676. Its totient is φ = 68754240.

The previous prime is 69040943. The next prime is 69040969. The reversal of 69040957 is 75904096.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 56160036 + 12880921 = 7494^2 + 3589^2 .

It is a cyclic number.

It is not a de Polignac number, because 69040957 - 2¹⁵ = 69008189 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 (69040157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142998 + ... + 143479.

It is an arithmetic number, because the mean of its divisors is an integer number (17331919).

Almost surely, 2^69040957 is an apocalyptic number.

It is an amenable number.

69040957 is a deficient number, since it is larger than the sum of its proper divisors (286719).

69040957 is a wasteful number, since it uses less digits than its factorization.

69040957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286718.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 69040957 is about 8309.0888188778. The cubic root of 69040957 is about 410.2377304624.

The spelling of 69040957 in words is "sixty-nine million, forty thousand, nine hundred fifty-seven".