1672639814 has 8 divisors (see below), whose sum is σ = 2509136040. Its totient is φ = 836261136.

The previous prime is 1672639811. The next prime is 1672639823. The reversal of 1672639814 is 4189362761.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672639811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31037 + ... + 65639.

It is an arithmetic number, because the mean of its divisors is an integer number (313642005).

Almost surely, 2^1672639814 is an apocalyptic number.

1672639814 is a deficient number, since it is larger than the sum of its proper divisors (836496226).

1672639814 is a wasteful number, since it uses less digits than its factorization.

1672639814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58774.

The product of its digits is 435456, while the sum is 47.

The square root of 1672639814 is about 40897.9194336338. The cubic root of 1672639814 is about 1187.0458026470.

The spelling of 1672639814 in words is "one billion, six hundred seventy-two million, six hundred thirty-nine thousand, eight hundred fourteen".