538249679 has 4 divisors (see below), whose sum is σ = 587181480. Its totient is φ = 489317880.

The previous prime is 538249669. The next prime is 538249711. The reversal of 538249679 is 976942835.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 538249679 - 2²⁴ = 521472463 is a prime.

It is a super-3 number, since 3×538249679³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 538249679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538249639) 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, 24465884 + ... + 24465905.

It is an arithmetic number, because the mean of its divisors is an integer number (146795370).

Almost surely, 2^538249679 is an apocalyptic number.

538249679 is a deficient number, since it is larger than the sum of its proper divisors (48931801).

538249679 is a wasteful number, since it uses less digits than its factorization.

538249679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48931800.

The product of its digits is 3265920, while the sum is 53.

The square root of 538249679 is about 23200.2085982001. The cubic root of 538249679 is about 813.4444989182. Note that the first 4 decimals are identical.

The spelling of 538249679 in words is "five hundred thirty-eight million, two hundred forty-nine thousand, six hundred seventy-nine".