1077724121 has 2 divisors, whose sum is σ = 1077724122. Its totient is φ = 1077724120.

The previous prime is 1077724097. The next prime is 1077724127. The reversal of 1077724121 is 1214277701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 838681600 + 239042521 = 28960^2 + 15461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077724121 - 2⁶ = 1077724057 is a prime.

It is a super-2 number, since 2×1077724121² = 2322978561970445282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1077724127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538862060 + 538862061.

It is an arithmetic number, because the mean of its divisors is an integer number (538862061).

Almost surely, 2^1077724121 is an apocalyptic number.

It is an amenable number.

1077724121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077724121 is an equidigital number, since it uses as much as digits as its factorization.

1077724121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 1077724121 is about 32828.7087927625. The cubic root of 1077724121 is about 1025.2643763014.

The spelling of 1077724121 in words is "one billion, seventy-seven million, seven hundred twenty-four thousand, one hundred twenty-one".