671006157 has 8 divisors (see below), whose sum is σ = 896201376. Its totient is φ = 446574192.

The previous prime is 671006131. The next prime is 671006173. The reversal of 671006157 is 751600176.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 671006157 - 2⁶ = 671006093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671006107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188758 + ... + 192279.

It is an arithmetic number, because the mean of its divisors is an integer number (112025172).

Almost surely, 2^671006157 is an apocalyptic number.

It is an amenable number.

671006157 is a deficient number, since it is larger than the sum of its proper divisors (225195219).

671006157 is a wasteful number, since it uses less digits than its factorization.

671006157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381627.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 671006157 is about 25903.7865378790. The cubic root of 671006157 is about 875.4718138985.

The spelling of 671006157 in words is "six hundred seventy-one million, six thousand, one hundred fifty-seven".