5415621 has 8 divisors (see below), whose sum is σ = 7253280. Its totient is φ = 3594192.

The previous prime is 5415617. The next prime is 5415659. The reversal of 5415621 is 1265145.

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

It is not a de Polignac number, because 5415621 - 2² = 5415617 is a prime.

It is a Curzon number.

5415621 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5415591 and 5415600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5415601) 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, 3255 + ... + 4628.

It is an arithmetic number, because the mean of its divisors is an integer number (906660).

Almost surely, 2^5415621 is an apocalyptic number.

It is an amenable number.

5415621 is a deficient number, since it is larger than the sum of its proper divisors (1837659).

5415621 is a wasteful number, since it uses less digits than its factorization.

5415621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115.

The product of its digits is 1200, while the sum is 24.

The square root of 5415621 is about 2327.1486845494. The cubic root of 5415621 is about 175.6100721007.

The spelling of 5415621 in words is "five million, four hundred fifteen thousand, six hundred twenty-one".