931421071 has 16 divisors (see below), whose sum is σ = 1100290048. Its totient is φ = 771573600.

The previous prime is 931421003. The next prime is 931421077. The reversal of 931421071 is 170124139.

It is not a de Polignac number, because 931421071 - 2¹³ = 931412879 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 (931421077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189181 + ... + 194041.

It is an arithmetic number, because the mean of its divisors is an integer number (68768128).

Almost surely, 2^931421071 is an apocalyptic number.

931421071 is a deficient number, since it is larger than the sum of its proper divisors (168868977).

931421071 is a wasteful number, since it uses less digits than its factorization.

931421071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 931421071 is about 30519.1918470984. The cubic root of 931421071 is about 976.5969257680.

The spelling of 931421071 in words is "nine hundred thirty-one million, four hundred twenty-one thousand, seventy-one".