76540331 has 8 divisors (see below), whose sum is σ = 88780800. Its totient is φ = 64626408.

The previous prime is 76540327. The next prime is 76540337. The reversal of 76540331 is 13304567.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 76540331 - 2² = 76540327 is a prime.

It is a super-2 number, since 2×76540331² = 11716844539179122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76540294 and 76540303.

It is not an unprimeable number, because it can be changed into a prime (76540337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81131 + ... + 82068.

It is an arithmetic number, because the mean of its divisors is an integer number (11097600).

Almost surely, 2^76540331 is an apocalyptic number.

76540331 is a deficient number, since it is larger than the sum of its proper divisors (12240469).

76540331 is a wasteful number, since it uses less digits than its factorization.

76540331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163273.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 76540331 is about 8748.7331082849. The cubic root of 76540331 is about 424.5838251260.

Adding to 76540331 its reverse (13304567), we get a palindrome (89844898).

The spelling of 76540331 in words is "seventy-six million, five hundred forty thousand, three hundred thirty-one".