87373031 has 4 divisors (see below), whose sum is σ = 87433200. Its totient is φ = 87312864.

The previous prime is 87373007. The next prime is 87373049. The reversal of 87373031 is 13037378.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87373031 is a prime.

It is a super-2 number, since 2×87373031² = 15268093092253922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87373051) 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, 27851 + ... + 30828.

It is an arithmetic number, because the mean of its divisors is an integer number (21858300).

Almost surely, 2^87373031 is an apocalyptic number.

87373031 is a deficient number, since it is larger than the sum of its proper divisors (60169).

87373031 is a wasteful number, since it uses less digits than its factorization.

87373031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60168.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 87373031 is about 9347.3542245921. The cubic root of 87373031 is about 443.7371611441.

The spelling of 87373031 in words is "eighty-seven million, three hundred seventy-three thousand, thirty-one".