1690694001 has 12 divisors (see below), whose sum is σ = 2442490128. Its totient is φ = 1126955544.

The previous prime is 1690693937. The next prime is 1690694023. The reversal of 1690694001 is 1004960961.

It is not a de Polignac number, because 1690694001 - 2⁶ = 1690693937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1690694101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78646 + ... + 97808.

It is an arithmetic number, because the mean of its divisors is an integer number (203540844).

Almost surely, 2^1690694001 is an apocalyptic number.

It is an amenable number.

1690694001 is a deficient number, since it is larger than the sum of its proper divisors (751796127).

1690694001 is a wasteful number, since it uses less digits than its factorization.

1690694001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28972 (or 28969 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1690694001 is about 41118.0495767978. The cubic root of 1690694001 is about 1191.3014504684.

The spelling of 1690694001 in words is "one billion, six hundred ninety million, six hundred ninety-four thousand, one".