1990650007 has 8 divisors (see below), whose sum is σ = 2099698560. Its totient is φ = 1882029240.

The previous prime is 1990649993. The next prime is 1990650043. The reversal of 1990650007 is 7000560991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1990650007 - 2⁷ = 1990649879 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 (1990650047) 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, 97363 + ... + 116020.

It is an arithmetic number, because the mean of its divisors is an integer number (262462320).

Almost surely, 2^1990650007 is an apocalyptic number.

1990650007 is a deficient number, since it is larger than the sum of its proper divisors (109048553).

1990650007 is a wasteful number, since it uses less digits than its factorization.

1990650007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213893.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 1990650007 is about 44616.7009874105. The cubic root of 1990650007 is about 1257.9546068329.

The spelling of 1990650007 in words is "one billion, nine hundred ninety million, six hundred fifty thousand, seven".