4891261 has 4 divisors (see below), whose sum is σ = 4960224. Its totient is φ = 4822300.

The previous prime is 4891253. The next prime is 4891283. The reversal of 4891261 is 1621984.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 4891261 - 2³ = 4891253 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 (4891241) 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, 34375 + ... + 34516.

It is an arithmetic number, because the mean of its divisors is an integer number (1240056).

Almost surely, 2^4891261 is an apocalyptic number.

It is an amenable number.

4891261 is a deficient number, since it is larger than the sum of its proper divisors (68963).

4891261 is an equidigital number, since it uses as much as digits as its factorization.

4891261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68962.

The product of its digits is 3456, while the sum is 31.

The square root of 4891261 is about 2211.6195423264. The cubic root of 4891261 is about 169.7488910892.

The spelling of 4891261 in words is "four million, eight hundred ninety-one thousand, two hundred sixty-one".