3457751221 has 8 divisors (see below), whose sum is σ = 3476174400. Its totient is φ = 3439377600.

The previous prime is 3457751197. The next prime is 3457751249. The reversal of 3457751221 is 1221577543.

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 3457751221 - 2⁵ = 3457751189 is a prime.

It is a pancake number, because a pancake can be divided into 3457751221 parts by 83159 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3457751281) 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, 131950 + ... + 155968.

It is an arithmetic number, because the mean of its divisors is an integer number (434521800).

Almost surely, 2^3457751221 is an apocalyptic number.

It is an amenable number.

3457751221 is a deficient number, since it is larger than the sum of its proper divisors (18423179).

3457751221 is a wasteful number, since it uses less digits than its factorization.

3457751221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24779.

The product of its digits is 58800, while the sum is 37.

The square root of 3457751221 is about 58802.6463775228. The cubic root of 3457751221 is about 1512.1605871459.

The spelling of 3457751221 in words is "three billion, four hundred fifty-seven million, seven hundred fifty-one thousand, two hundred twenty-one".