100064987 has 4 divisors (see below), whose sum is σ = 109161816. Its totient is φ = 90968160.

The previous prime is 100064977. The next prime is 100065023. The reversal of 100064987 is 789460001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 789460001 = 11 ⋅71769091.

It is a cyclic number.

It is not a de Polignac number, because 100064987 - 2⁴ = 100064971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100064917) 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, 4548398 + ... + 4548419.

It is an arithmetic number, because the mean of its divisors is an integer number (27290454).

Almost surely, 2^100064987 is an apocalyptic number.

100064987 is a deficient number, since it is larger than the sum of its proper divisors (9096829).

100064987 is an equidigital number, since it uses as much as digits as its factorization.

100064987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9096828.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 100064987 is about 10003.2488222577. The cubic root of 100064987 is about 464.2594092327.

The spelling of 100064987 in words is "one hundred million, sixty-four thousand, nine hundred eighty-seven".