1672002106 has 4 divisors (see below), whose sum is σ = 2508003162. Its totient is φ = 836001052.

The previous prime is 1672002103. The next prime is 1672002119. The reversal of 1672002106 is 6012002761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6012002761 = 5659 ⋅1062379.

It can be written as a sum of positive squares in only one way, i.e., 1396143225 + 275858881 = 37365^2 + 16609^2 .

It is not an unprimeable number, because it can be changed into a prime (1672002103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418000525 + ... + 418000528.

Almost surely, 2^1672002106 is an apocalyptic number.

1672002106 is a deficient number, since it is larger than the sum of its proper divisors (836001056).

1672002106 is an equidigital number, since it uses as much as digits as its factorization.

1672002106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836001055.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1672002106 is about 40890.1223524704. The cubic root of 1672002106 is about 1186.8949264051.

Adding to 1672002106 its reverse (6012002761), we get a palindrome (7684004867).

The spelling of 1672002106 in words is "one billion, six hundred seventy-two million, two thousand, one hundred six".