2921439077 has 4 divisors (see below), whose sum is σ = 2922031980. Its totient is φ = 2920846176.

The previous prime is 2921439071. The next prime is 2921439089. The reversal of 2921439077 is 7709341292.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1673300836 + 1248138241 = 40906^2 + 35329^2 .

It is a cyclic number.

It is not a de Polignac number, because 2921439077 - 2⁴ = 2921439061 is a prime.

It is a super-2 number, since 2×2921439077² = 17069612561245223858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2921439071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288998 + ... + 298935.

It is an arithmetic number, because the mean of its divisors is an integer number (730507995).

Almost surely, 2^2921439077 is an apocalyptic number.

It is an amenable number.

2921439077 is a deficient number, since it is larger than the sum of its proper divisors (592903).

2921439077 is an equidigital number, since it uses as much as digits as its factorization.

2921439077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592902.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 2921439077 is about 54050.3383615681. The cubic root of 2921439077 is about 1429.5486663097.

The spelling of 2921439077 in words is "two billion, nine hundred twenty-one million, four hundred thirty-nine thousand, seventy-seven".