1027051997 has 4 divisors (see below), whose sum is σ = 1030681440. Its totient is φ = 1023422556.

The previous prime is 1027051981. The next prime is 1027052017. The reversal of 1027051997 is 7991507201.

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: 7991507201 = 79 ⋅101158319.

It is a cyclic number.

It is not a de Polignac number, because 1027051997 - 2⁴ = 1027051981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027059997) 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, 1814297 + ... + 1814862.

It is an arithmetic number, because the mean of its divisors is an integer number (257670360).

Almost surely, 2^1027051997 is an apocalyptic number.

It is an amenable number.

1027051997 is a deficient number, since it is larger than the sum of its proper divisors (3629443).

1027051997 is an equidigital number, since it uses as much as digits as its factorization.

1027051997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629442.

The product of its (nonzero) digits is 39690, while the sum is 41.

The square root of 1027051997 is about 32047.6519732726. The cubic root of 1027051997 is about 1008.9372204733.

The spelling of 1027051997 in words is "one billion, twenty-seven million, fifty-one thousand, nine hundred ninety-seven".