1077946557 has 8 divisors (see below), whose sum is σ = 1521806976. Its totient is φ = 676358592.

The previous prime is 1077946549. The next prime is 1077946561. The reversal of 1077946557 is 7556497701.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1077946557 - 2³ = 1077946549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 21136207 = 1077946557 / (1 + 0 + 7 + 7 + 9 + 4 + 6 + 5 + 5 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077946537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10568053 + ... + 10568154.

It is an arithmetic number, because the mean of its divisors is an integer number (190225872).

Almost surely, 2^1077946557 is an apocalyptic number.

1077946557 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1077946557 is a deficient number, since it is larger than the sum of its proper divisors (443860419).

1077946557 is a wasteful number, since it uses less digits than its factorization.

1077946557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21136227.

The product of its (nonzero) digits is 1852200, while the sum is 51.

The square root of 1077946557 is about 32832.0964453993. The cubic root of 1077946557 is about 1025.3349076536.

The spelling of 1077946557 in words is "one billion, seventy-seven million, nine hundred forty-six thousand, five hundred fifty-seven".