102669487 has 4 divisors (see below), whose sum is σ = 105444376. Its totient is φ = 99894600.

The previous prime is 102669481. The next prime is 102669491. The reversal of 102669487 is 784966201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784966201 = 277 ⋅2833813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102669487 is a prime.

It is a super-4 number, since 4×102669487⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102669481) 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, 1387389 + ... + 1387462.

It is an arithmetic number, because the mean of its divisors is an integer number (26361094).

Almost surely, 2^102669487 is an apocalyptic number.

102669487 is a deficient number, since it is larger than the sum of its proper divisors (2774889).

102669487 is an equidigital number, since it uses as much as digits as its factorization.

102669487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774888.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 102669487 is about 10132.5952746569. The cubic root of 102669487 is about 468.2528873475.

The spelling of 102669487 in words is "one hundred two million, six hundred sixty-nine thousand, four hundred eighty-seven".