1006973990 has 16 divisors (see below), whose sum is σ = 1977330960. Its totient is φ = 366172320.

The previous prime is 1006973969. The next prime is 1006973999. The reversal of 1006973990 is 993796001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006973999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4577045 + ... + 4577264.

It is an arithmetic number, because the mean of its divisors is an integer number (123583185).

Almost surely, 2^1006973990 is an apocalyptic number.

1006973990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1006973990 is a deficient number, since it is larger than the sum of its proper divisors (970356970).

1006973990 is a wasteful number, since it uses less digits than its factorization.

1006973990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9154327.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 1006973990 is about 31732.8534802655. The cubic root of 1006973990 is about 1002.3192801146.

The spelling of 1006973990 in words is "one billion, six million, nine hundred seventy-three thousand, nine hundred ninety".