102791087 has 16 divisors (see below), whose sum is σ = 119577600. Its totient is φ = 86542560.

The previous prime is 102791053. The next prime is 102791089. The reversal of 102791087 is 780197201.

It is a cyclic number.

It is not a de Polignac number, because 102791087 - 2¹⁶ = 102725551 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 (102791089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148412 + ... + 149102.

It is an arithmetic number, because the mean of its divisors is an integer number (7473600).

Almost surely, 2^102791087 is an apocalyptic number.

102791087 is a deficient number, since it is larger than the sum of its proper divisors (16786513).

102791087 is an equidigital number, since it uses as much as digits as its factorization.

102791087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 102791087 is about 10138.5939360446. The cubic root of 102791087 is about 468.4376780065.

The spelling of 102791087 in words is "one hundred two million, seven hundred ninety-one thousand, eighty-seven".