208972738 has 32 divisors (see below), whose sum is σ = 362517120. Its totient is φ = 89483520.

The previous prime is 208972727. The next prime is 208972741. The reversal of 208972738 is 837279802.

208972738 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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28053 + ... + 34711.

It is an arithmetic number, because the mean of its divisors is an integer number (11328660).

Almost surely, 2^208972738 is an apocalyptic number.

208972738 is a deficient number, since it is larger than the sum of its proper divisors (153544382).

208972738 is a wasteful number, since it uses less digits than its factorization.

208972738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 208972738 is about 14455.8893880660. The cubic root of 208972738 is about 593.4214097953.

The spelling of 208972738 in words is "two hundred eight million, nine hundred seventy-two thousand, seven hundred thirty-eight".