200407021 has 8 divisors (see below), whose sum is σ = 203993888. Its totient is φ = 196830000.

The previous prime is 200406977. The next prime is 200407037. The reversal of 200407021 is 120704002.

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

It is a 9-Lehmer number, since φ(200407021) divides (200407021-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 200407021 - 2¹³ = 200398829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200406986 and 200407004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200407061) 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, 47446 + ... + 51496.

It is an arithmetic number, because the mean of its divisors is an integer number (25499236).

Almost surely, 2^200407021 is an apocalyptic number.

It is an amenable number.

200407021 is a deficient number, since it is larger than the sum of its proper divisors (3586867).

200407021 is an equidigital number, since it uses as much as digits as its factorization.

200407021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4923.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 200407021 is about 14156.5186751546. The cubic root of 200407021 is about 585.1999910374.

The spelling of 200407021 in words is "two hundred million, four hundred seven thousand, twenty-one".