1490779077 has 4 divisors (see below), whose sum is σ = 1987705440. Its totient is φ = 993852716.

The previous prime is 1490779039. The next prime is 1490779091. The reversal of 1490779077 is 7709770941.

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: 7709770941 = 3 ⋅2569923647.

It is a cyclic number.

It is not a de Polignac number, because 1490779077 - 2¹² = 1490774981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490779097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248463177 + ... + 248463182.

It is an arithmetic number, because the mean of its divisors is an integer number (496926360).

Almost surely, 2^1490779077 is an apocalyptic number.

It is an amenable number.

1490779077 is a deficient number, since it is larger than the sum of its proper divisors (496926363).

1490779077 is an equidigital number, since it uses as much as digits as its factorization.

1490779077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496926362.

The product of its (nonzero) digits is 777924, while the sum is 51.

The square root of 1490779077 is about 38610.6083479657. The cubic root of 1490779077 is about 1142.3637925746.

The spelling of 1490779077 in words is "one billion, four hundred ninety million, seven hundred seventy-nine thousand, seventy-seven".