1072777949 has 4 divisors (see below), whose sum is σ = 1073701536. Its totient is φ = 1071854364.

The previous prime is 1072777939. The next prime is 1072777969. The reversal of 1072777949 is 9497772701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9497772701 = 1439 ⋅6600259.

It is a cyclic number.

It is not a de Polignac number, because 1072777949 - 2²⁴ = 1056000733 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1072777949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072777919) 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, 460049 + ... + 462374.

It is an arithmetic number, because the mean of its divisors is an integer number (268425384).

Almost surely, 2^1072777949 is an apocalyptic number.

It is an amenable number.

1072777949 is a deficient number, since it is larger than the sum of its proper divisors (923587).

1072777949 is an equidigital number, since it uses as much as digits as its factorization.

1072777949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923586.

The product of its (nonzero) digits is 1555848, while the sum is 53.

The square root of 1072777949 is about 32753.2891325436. The cubic root of 1072777949 is about 1023.6935006585.

The spelling of 1072777949 in words is "one billion, seventy-two million, seven hundred seventy-seven thousand, nine hundred forty-nine".