1077671221 has 4 divisors (see below), whose sum is σ = 1175641344. Its totient is φ = 979701100.

The previous prime is 1077671209. The next prime is 1077671263. The reversal of 1077671221 is 1221767701.

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 1077671221 - 2⁷ = 1077671093 is a prime.

It is a super-2 number, since 2×1077671221² = 2322750521143261682, 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 (1077671281) 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, 48985045 + ... + 48985066.

It is an arithmetic number, because the mean of its divisors is an integer number (293910336).

Almost surely, 2^1077671221 is an apocalyptic number.

1077671221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1077671221 is a deficient number, since it is larger than the sum of its proper divisors (97970123).

1077671221 is an equidigital number, since it uses as much as digits as its factorization.

1077671221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97970122.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 1077671221 is about 32827.9030856374. The cubic root of 1077671221 is about 1025.2476010210.

The spelling of 1077671221 in words is "one billion, seventy-seven million, six hundred seventy-one thousand, two hundred twenty-one".