1672687964 has 24 divisors (see below), whose sum is σ = 2974289808. Its totient is φ = 822919680.

The previous prime is 1672687957. The next prime is 1672687969. The reversal of 1672687964 is 4697862761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672687969) 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, 270572 + ... + 276684.

It is an arithmetic number, because the mean of its divisors is an integer number (123928742).

Almost surely, 2^1672687964 is an apocalyptic number.

It is an amenable number.

1672687964 is a deficient number, since it is larger than the sum of its proper divisors (1301601844).

1672687964 is a wasteful number, since it uses less digits than its factorization.

1672687964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7205 (or 7203 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The square root of 1672687964 is about 40898.5080901492. The cubic root of 1672687964 is about 1187.0571929668.

The spelling of 1672687964 in words is "one billion, six hundred seventy-two million, six hundred eighty-seven thousand, nine hundred sixty-four".