215084738 has 8 divisors (see below), whose sum is σ = 351956880. Its totient is φ = 97765780.

The previous prime is 215084717. The next prime is 215084747. The reversal of 215084738 is 837480512.

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

It is a super-2 number, since 2×215084738² = 92522889041057288, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4888268 + ... + 4888311.

It is an arithmetic number, because the mean of its divisors is an integer number (43994610).

Almost surely, 2^215084738 is an apocalyptic number.

215084738 is a deficient number, since it is larger than the sum of its proper divisors (136872142).

215084738 is a wasteful number, since it uses less digits than its factorization.

215084738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9776592.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 215084738 is about 14665.7675557742. The cubic root of 215084738 is about 599.1513353650.

The spelling of 215084738 in words is "two hundred fifteen million, eighty-four thousand, seven hundred thirty-eight".