253197679 has 8 divisors (see below), whose sum is σ = 290741888. Its totient is φ = 215996760.

The previous prime is 253197661. The next prime is 253197683. The reversal of 253197679 is 976791352.

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

It is not a de Polignac number, because 253197679 - 2¹³ = 253189487 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 (253197619) 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, 84237 + ... + 87190.

It is an arithmetic number, because the mean of its divisors is an integer number (36342736).

Almost surely, 2^253197679 is an apocalyptic number.

253197679 is a deficient number, since it is larger than the sum of its proper divisors (37544209).

253197679 is a wasteful number, since it uses less digits than its factorization.

253197679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171645.

The product of its digits is 714420, while the sum is 49.

The square root of 253197679 is about 15912.1864933767. The cubic root of 253197679 is about 632.6350362372.

The spelling of 253197679 in words is "two hundred fifty-three million, one hundred ninety-seven thousand, six hundred seventy-nine".