53697423 has 16 divisors (see below), whose sum is σ = 77237216. Its totient is φ = 32987520.

The previous prime is 53697419. The next prime is 53697437. The reversal of 53697423 is 32479635.

It is not a de Polignac number, because 53697423 - 2² = 53697419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53697463) 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, 38193 + ... + 39573.

It is an arithmetic number, because the mean of its divisors is an integer number (4827326).

Almost surely, 2^53697423 is an apocalyptic number.

53697423 is a deficient number, since it is larger than the sum of its proper divisors (23539793).

53697423 is a wasteful number, since it uses less digits than its factorization.

53697423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its digits is 136080, while the sum is 39.

The square root of 53697423 is about 7327.8525503724. The cubic root of 53697423 is about 377.2690235067.

The spelling of 53697423 in words is "fifty-three million, six hundred ninety-seven thousand, four hundred twenty-three".