761426221 has 4 divisors (see below), whose sum is σ = 763057152. Its totient is φ = 759795292.

The previous prime is 761426177. The next prime is 761426279. The reversal of 761426221 is 122624167.

761426221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 761426221 - 2¹³ = 761418029 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 (761426021) 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, 814765 + ... + 815698.

It is an arithmetic number, because the mean of its divisors is an integer number (190764288).

Almost surely, 2^761426221 is an apocalyptic number.

It is an amenable number.

761426221 is a deficient number, since it is larger than the sum of its proper divisors (1630931).

761426221 is a wasteful number, since it uses less digits than its factorization.

761426221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630930.

The product of its digits is 8064, while the sum is 31.

The square root of 761426221 is about 27593.9526164702. The cubic root of 761426221 is about 913.1510219016.

The spelling of 761426221 in words is "seven hundred sixty-one million, four hundred twenty-six thousand, two hundred twenty-one".