1018970997 has 16 divisors (see below), whose sum is σ = 1500000768. Its totient is φ = 610116080.

The previous prime is 1018970987. The next prime is 1018971013. The reversal of 1018970997 is 7990798101.

It is a cyclic number.

It is not a de Polignac number, because 1018970997 - 2⁶ = 1018970933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018970947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183273 + ... + 188750.

It is an arithmetic number, because the mean of its divisors is an integer number (93750048).

Almost surely, 2^1018970997 is an apocalyptic number.

It is an amenable number.

1018970997 is a deficient number, since it is larger than the sum of its proper divisors (481029771).

1018970997 is a wasteful number, since it uses less digits than its factorization.

1018970997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372120.

The product of its (nonzero) digits is 285768, while the sum is 51.

The square root of 1018970997 is about 31921.3251134723. The cubic root of 1018970997 is about 1006.2840931211.

The spelling of 1018970997 in words is "one billion, eighteen million, nine hundred seventy thousand, nine hundred ninety-seven".