102406447 has 16 divisors (see below), whose sum is σ = 126645120. Its totient is φ = 81410400.

The previous prime is 102406439. The next prime is 102406471. The reversal of 102406447 is 744604201.

It is a cyclic number.

It is not a de Polignac number, because 102406447 - 2³ = 102406439 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 (102406247) 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, 16129 + ... + 21562.

It is an arithmetic number, because the mean of its divisors is an integer number (7915320).

Almost surely, 2^102406447 is an apocalyptic number.

102406447 is a deficient number, since it is larger than the sum of its proper divisors (24238673).

102406447 is a wasteful number, since it uses less digits than its factorization.

102406447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37734.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 102406447 is about 10119.6070575887. The cubic root of 102406447 is about 467.8526562113.

The spelling of 102406447 in words is "one hundred two million, four hundred six thousand, four hundred forty-seven".