1672420601 has 4 divisors (see below), whose sum is σ = 1674368400. Its totient is φ = 1670472804.

The previous prime is 1672420573. The next prime is 1672420619. The reversal of 1672420601 is 1060242761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1060242761 = 5821 ⋅182141.

It is a cyclic number.

It is not a de Polignac number, because 1672420601 - 2⁶ = 1672420537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1672420301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972611 + ... + 974328.

It is an arithmetic number, because the mean of its divisors is an integer number (418592100).

Almost surely, 2^1672420601 is an apocalyptic number.

It is an amenable number.

1672420601 is a deficient number, since it is larger than the sum of its proper divisors (1947799).

1672420601 is an equidigital number, since it uses as much as digits as its factorization.

1672420601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947798.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1672420601 is about 40895.2393439628. The cubic root of 1672420601 is about 1186.9939430580.

The spelling of 1672420601 in words is "one billion, six hundred seventy-two million, four hundred twenty thousand, six hundred one".