671623141 has 16 divisors (see below), whose sum is σ = 779517184. Its totient is φ = 566745984.

The previous prime is 671623129. The next prime is 671623157. The reversal of 671623141 is 141326176.

It is not a de Polignac number, because 671623141 - 2¹³ = 671614949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671623171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419755 + ... + 421351.

It is an arithmetic number, because the mean of its divisors is an integer number (48719824).

Almost surely, 2^671623141 is an apocalyptic number.

It is an amenable number.

671623141 is a deficient number, since it is larger than the sum of its proper divisors (107894043).

671623141 is a wasteful number, since it uses less digits than its factorization.

671623141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500.

The product of its digits is 6048, while the sum is 31.

The square root of 671623141 is about 25915.6929484820. The cubic root of 671623141 is about 875.7400611297.

The spelling of 671623141 in words is "six hundred seventy-one million, six hundred twenty-three thousand, one hundred forty-one".