11621473 has 4 divisors (see below), whose sum is σ = 11741380. Its totient is φ = 11501568.

The previous prime is 11621461. The next prime is 11621501. The reversal of 11621473 is 37412611.

11621473 = 297² + 298² + ... + 393².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8958049 + 2663424 = 2993^2 + 1632^2 .

It is a cyclic number.

It is not a de Polignac number, because 11621473 - 2²¹ = 9524321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59808 + ... + 60001.

It is an arithmetic number, because the mean of its divisors is an integer number (2935345).

Almost surely, 2^11621473 is an apocalyptic number.

It is an amenable number.

11621473 is a deficient number, since it is larger than the sum of its proper divisors (119907).

11621473 is an equidigital number, since it uses as much as digits as its factorization.

11621473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119906.

The product of its digits is 1008, while the sum is 25.

The square root of 11621473 is about 3409.0281606346. The cubic root of 11621473 is about 226.5098326376.

The spelling of 11621473 in words is "eleven million, six hundred twenty-one thousand, four hundred seventy-three".