1077400901 has 4 divisors (see below), whose sum is σ = 1078024332. Its totient is φ = 1076777472.

The previous prime is 1077400867. The next prime is 1077400903. The reversal of 1077400901 is 1090047701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1090047701 = 17 ⋅64120453.

It can be written as a sum of positive squares in 2 ways, for example, as 145564225 + 931836676 = 12065^2 + 30526^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077400901 - 2²² = 1073206597 is a prime.

It is a super-2 number, since 2×1077400901² = 2321585402951223602, 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 (1077400903) 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, 309116 + ... + 312581.

It is an arithmetic number, because the mean of its divisors is an integer number (269506083).

Almost surely, 2^1077400901 is an apocalyptic number.

It is an amenable number.

1077400901 is a deficient number, since it is larger than the sum of its proper divisors (623431).

1077400901 is an equidigital number, since it uses as much as digits as its factorization.

1077400901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623430.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 1077400901 is about 32823.7855982518. The cubic root of 1077400901 is about 1025.1618704500.

The spelling of 1077400901 in words is "one billion, seventy-seven million, four hundred thousand, nine hundred one".