87073971 has 8 divisors (see below), whose sum is σ = 116161680. Its totient is φ = 58017792.

The previous prime is 87073963. The next prime is 87073991. The reversal of 87073971 is 17937078.

It is a happy number.

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

It is not a de Polignac number, because 87073971 - 2³ = 87073963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87073991) 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, 430 + ... + 13203.

It is an arithmetic number, because the mean of its divisors is an integer number (14520210).

Almost surely, 2^87073971 is an apocalyptic number.

87073971 is a deficient number, since it is larger than the sum of its proper divisors (29087709).

87073971 is a wasteful number, since it uses less digits than its factorization.

87073971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15765.

The product of its (nonzero) digits is 74088, while the sum is 42.

The square root of 87073971 is about 9331.3434724052. The cubic root of 87073971 is about 443.2303085959.

The spelling of 87073971 in words is "eighty-seven million, seventy-three thousand, nine hundred seventy-one".