761331 has 4 divisors (see below), whose sum is σ = 1015112. Its totient is φ = 507552.

The previous prime is 761297. The next prime is 761347. The reversal of 761331 is 133167.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133167 = 3 ⋅44389.

It is not a de Polignac number, because 761331 - 2⁷ = 761203 is a prime.

It is a super-2 number, since 2×761331² = 1159249783122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 761298 and 761307.

It is not an unprimeable number, because it can be changed into a prime (761351) 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, 126886 + ... + 126891.

It is an arithmetic number, because the mean of its divisors is an integer number (253778).

2⁷⁶¹³³¹ is an apocalyptic number.

761331 is a deficient number, since it is larger than the sum of its proper divisors (253781).

761331 is a wasteful number, since it uses less digits than its factorization.

761331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253780.

The product of its digits is 378, while the sum is 21.

The square root of 761331 is about 872.5428356247. The cubic root of 761331 is about 91.3112955277.

Adding to 761331 its reverse (133167), we get a palindrome (894498).

The spelling of 761331 in words is "seven hundred sixty-one thousand, three hundred thirty-one".