1077442621 has 4 divisors (see below), whose sum is σ = 1078581312. Its totient is φ = 1076303932.

The previous prime is 1077442591. The next prime is 1077442657. The reversal of 1077442621 is 1262447701.

It is a happy number.

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 1077442621 - 2¹³ = 1077434429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077442661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567925 + ... + 569818.

It is an arithmetic number, because the mean of its divisors is an integer number (269645328).

Almost surely, 2^1077442621 is an apocalyptic number.

It is an amenable number.

1077442621 is a deficient number, since it is larger than the sum of its proper divisors (1138691).

1077442621 is an equidigital number, since it uses as much as digits as its factorization.

1077442621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138690.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 1077442621 is about 32824.4211068527. The cubic root of 1077442621 is about 1025.1751026650.

The spelling of 1077442621 in words is "one billion, seventy-seven million, four hundred forty-two thousand, six hundred twenty-one".