538753891 has 16 divisors (see below), whose sum is σ = 592962048. Its totient is φ = 486460800.

The previous prime is 538753889. The next prime is 538753933. The reversal of 538753891 is 198357835.

It is a cyclic number.

It is not a de Polignac number, because 538753891 - 2¹ = 538753889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538753801) 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, 149685 + ... + 153241.

It is an arithmetic number, because the mean of its divisors is an integer number (37060128).

Almost surely, 2^538753891 is an apocalyptic number.

538753891 is a deficient number, since it is larger than the sum of its proper divisors (54208157).

538753891 is a wasteful number, since it uses less digits than its factorization.

538753891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822.

The product of its digits is 907200, while the sum is 49.

The square root of 538753891 is about 23211.0725947768. The cubic root of 538753891 is about 813.6984210227.

The spelling of 538753891 in words is "five hundred thirty-eight million, seven hundred fifty-three thousand, eight hundred ninety-one".