6297490421 has 8 divisors (see below), whose sum is σ = 6669647640. Its totient is φ = 5925523968.

The previous prime is 6297490411. The next prime is 6297490427. The reversal of 6297490421 is 1240947926.

It can be written as a sum of positive squares in 4 ways, for example, as 233753521 + 6063736900 = 15289^2 + 77870^2 .

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 6297490421 - 2¹⁸ = 6297228277 is a prime.

It is a super-3 number, since 3×6297490421³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6297490427) 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, 23315 + ... + 114623.

It is an arithmetic number, because the mean of its divisors is an integer number (833705955).

Almost surely, 2^6297490421 is an apocalyptic number.

It is an amenable number.

6297490421 is a deficient number, since it is larger than the sum of its proper divisors (372157219).

6297490421 is a wasteful number, since it uses less digits than its factorization.

6297490421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95383.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 6297490421 is about 79356.7288955385. The cubic root of 6297490421 is about 1846.6694809214.

The spelling of 6297490421 in words is "six billion, two hundred ninety-seven million, four hundred ninety thousand, four hundred twenty-one".