801521247 has 8 divisors (see below), whose sum is σ = 1093548544. Its totient is φ = 521920728.

The previous prime is 801521233. The next prime is 801521249. The reversal of 801521247 is 742125108.

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

It is not a de Polignac number, because 801521247 - 2¹⁴ = 801504863 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 (801521249) 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, 3106543 + ... + 3106800.

It is an arithmetic number, because the mean of its divisors is an integer number (136693568).

Almost surely, 2^801521247 is an apocalyptic number.

801521247 is a deficient number, since it is larger than the sum of its proper divisors (292027297).

801521247 is a wasteful number, since it uses less digits than its factorization.

801521247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213389.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 801521247 is about 28311.1505771136. The cubic root of 801521247 is about 928.9058110703.

The spelling of 801521247 in words is "eight hundred one million, five hundred twenty-one thousand, two hundred forty-seven".