1670733897 has 16 divisors (see below), whose sum is σ = 2679874560. Its totient is φ = 904457232.

The previous prime is 1670733881. The next prime is 1670733923. The reversal of 1670733897 is 7983370761.

It is not a de Polignac number, because 1670733897 - 2⁴ = 1670733881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1670733817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2093253 + ... + 2094050.

It is an arithmetic number, because the mean of its divisors is an integer number (167492160).

Almost surely, 2^1670733897 is an apocalyptic number.

It is an amenable number.

1670733897 is a deficient number, since it is larger than the sum of its proper divisors (1009140663).

1670733897 is a wasteful number, since it uses less digits than its factorization.

1670733897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187332.

The product of its (nonzero) digits is 1333584, while the sum is 51.

The square root of 1670733897 is about 40874.6118880657. The cubic root of 1670733897 is about 1186.5947649890.

The spelling of 1670733897 in words is "one billion, six hundred seventy million, seven hundred thirty-three thousand, eight hundred ninety-seven".