87640103 has 8 divisors (see below), whose sum is σ = 93766320. Its totient is φ = 81665280.

The previous prime is 87640099. The next prime is 87640121. The reversal of 87640103 is 30104678.

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

It is a cyclic number.

It is not a de Polignac number, because 87640103 - 2² = 87640099 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 (87640153) 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, 36650 + ... + 38967.

It is an arithmetic number, because the mean of its divisors is an integer number (11720790).

Almost surely, 2^87640103 is an apocalyptic number.

87640103 is a deficient number, since it is larger than the sum of its proper divisors (6126217).

87640103 is a wasteful number, since it uses less digits than its factorization.

87640103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75697.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 87640103 is about 9361.6292919555. The cubic root of 87640103 is about 444.1888231169.

The spelling of 87640103 in words is "eighty-seven million, six hundred forty thousand, one hundred three".