214021757 has 8 divisors (see below), whose sum is σ = 225439200. Its totient is φ = 202619664.

The previous prime is 214021697. The next prime is 214021781. The reversal of 214021757 is 757120412.

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

It is a cyclic number.

It is not a de Polignac number, because 214021757 - 2⁸ = 214021501 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 (214021057) 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, 34919 + ... + 40587.

It is an arithmetic number, because the mean of its divisors is an integer number (28179900).

Almost surely, 2^214021757 is an apocalyptic number.

It is an amenable number.

214021757 is a deficient number, since it is larger than the sum of its proper divisors (11417443).

214021757 is a wasteful number, since it uses less digits than its factorization.

214021757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 214021757 is about 14629.4824583784. The cubic root of 214021757 is about 598.1626729772.

The spelling of 214021757 in words is "two hundred fourteen million, twenty-one thousand, seven hundred fifty-seven".