53867829 has 4 divisors (see below), whose sum is σ = 71823776. Its totient is φ = 35911884.

The previous prime is 53867813. The next prime is 53867833. The reversal of 53867829 is 92876835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53867829 - 2⁴ = 53867813 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 (53867729) 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, 8977969 + ... + 8977974.

It is an arithmetic number, because the mean of its divisors is an integer number (17955944).

Almost surely, 2^53867829 is an apocalyptic number.

It is an amenable number.

53867829 is a deficient number, since it is larger than the sum of its proper divisors (17955947).

53867829 is a wasteful number, since it uses less digits than its factorization.

53867829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17955946.

The product of its digits is 725760, while the sum is 48.

The square root of 53867829 is about 7339.4706212369. The cubic root of 53867829 is about 377.6676833519.

The spelling of 53867829 in words is "fifty-three million, eight hundred sixty-seven thousand, eight hundred twenty-nine".