1048056989 has 4 divisors (see below), whose sum is σ = 1197779424. Its totient is φ = 898334556.

The previous prime is 1048056979. The next prime is 1048056991. The reversal of 1048056989 is 9896508401.

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.

It is not a de Polignac number, because 1048056989 - 2⁸ = 1048056733 is a prime.

It is a super-2 number, since 2×1048056989² = 2196846904383492242, 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 (1048056979) 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, 74861207 + ... + 74861220.

It is an arithmetic number, because the mean of its divisors is an integer number (299444856).

Almost surely, 2^1048056989 is an apocalyptic number.

It is an amenable number.

1048056989 is a deficient number, since it is larger than the sum of its proper divisors (149722435).

1048056989 is an equidigital number, since it uses as much as digits as its factorization.

1048056989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149722434.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 1048056989 is about 32373.7082985561. The cubic root of 1048056989 is about 1015.7690270650.

The spelling of 1048056989 in words is "one billion, forty-eight million, fifty-six thousand, nine hundred eighty-nine".