802621401 has 8 divisors (see below), whose sum is σ = 1070404320. Its totient is φ = 534959712.

The previous prime is 802621399. The next prime is 802621439. The reversal of 802621401 is 104126208.

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

It is not a de Polignac number, because 802621401 - 2¹ = 802621399 is a prime.

It is a super-2 number, since 2×802621401² = 1288402226686405602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (802621441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13531 + ... + 42288.

It is an arithmetic number, because the mean of its divisors is an integer number (133800540).

Almost surely, 2^802621401 is an apocalyptic number.

It is an amenable number.

802621401 is a deficient number, since it is larger than the sum of its proper divisors (267782919).

802621401 is a wasteful number, since it uses less digits than its factorization.

802621401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60615.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 802621401 is about 28330.5736087358. The cubic root of 802621401 is about 929.3306167085.

Adding to 802621401 its reverse (104126208), we get a palindrome (906747609).

The spelling of 802621401 in words is "eight hundred two million, six hundred twenty-one thousand, four hundred one".