208625970 has 128 divisors (see below), whose sum is σ = 600145920. Its totient is φ = 45411840.

The previous prime is 208625969. The next prime is 208625993. The reversal of 208625970 is 79526802.

It is a happy number.

208625970 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 475011 + ... + 475449.

It is an arithmetic number, because the mean of its divisors is an integer number (4688640).

Almost surely, 2^208625970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 208625970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300072960).

208625970 is an abundant number, since it is smaller than the sum of its proper divisors (391519950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

208625970 is a wasteful number, since it uses less digits than its factorization.

208625970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 208625970 is about 14443.8904039043. The cubic root of 208625970 is about 593.0929881942.

The spelling of 208625970 in words is "two hundred eight million, six hundred twenty-five thousand, nine hundred seventy".