1672589949 has 4 divisors (see below), whose sum is σ = 2230119936. Its totient is φ = 1115059964.

The previous prime is 1672589899. The next prime is 1672589951. The reversal of 1672589949 is 9499852761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1672589949 - 2¹¹ = 1672587901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1672589892 and 1672589901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672589959) 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, 278764989 + ... + 278764994.

It is an arithmetic number, because the mean of its divisors is an integer number (557529984).

Almost surely, 2^1672589949 is an apocalyptic number.

It is an amenable number.

1672589949 is a deficient number, since it is larger than the sum of its proper divisors (557529987).

1672589949 is an equidigital number, since it uses as much as digits as its factorization.

1672589949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557529986.

The product of its digits is 9797760, while the sum is 60.

The square root of 1672589949 is about 40897.3098015016. The cubic root of 1672589949 is about 1187.0340063980.

The spelling of 1672589949 in words is "one billion, six hundred seventy-two million, five hundred eighty-nine thousand, nine hundred forty-nine".