670671541 has 4 divisors (see below), whose sum is σ = 680681632. Its totient is φ = 660661452.

The previous prime is 670671503. The next prime is 670671619. The reversal of 670671541 is 145176076.

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 670671541 - 2⁷ = 670671413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670671541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670671941) 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, 5004945 + ... + 5005078.

It is an arithmetic number, because the mean of its divisors is an integer number (170170408).

Almost surely, 2^670671541 is an apocalyptic number.

It is an amenable number.

670671541 is a deficient number, since it is larger than the sum of its proper divisors (10010091).

670671541 is a wasteful number, since it uses less digits than its factorization.

670671541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010090.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 670671541 is about 25897.3269083896. The cubic root of 670671541 is about 875.3262635274.

The spelling of 670671541 in words is "six hundred seventy million, six hundred seventy-one thousand, five hundred forty-one".