76489221 has 8 divisors (see below), whose sum is σ = 102027904. Its totient is φ = 50971680.

The previous prime is 76489199. The next prime is 76489243. The reversal of 76489221 is 12298467.

It is an interprime number because it is at equal distance from previous prime (76489199) and next prime (76489243).

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

It is not a de Polignac number, because 76489221 - 2⁶ = 76489157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76489221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76489261) 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, 7761 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (12753488).

Almost surely, 2^76489221 is an apocalyptic number.

It is an amenable number.

76489221 is a deficient number, since it is larger than the sum of its proper divisors (25538683).

76489221 is a wasteful number, since it uses less digits than its factorization.

76489221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10571.

The product of its digits is 48384, while the sum is 39.

The square root of 76489221 is about 8745.8116261443. The cubic root of 76489221 is about 424.4892984410.

The spelling of 76489221 in words is "seventy-six million, four hundred eighty-nine thousand, two hundred twenty-one".