36949421 has 4 divisors (see below), whose sum is σ = 37948092. Its totient is φ = 35950752.

The previous prime is 36949403. The next prime is 36949439. The reversal of 36949421 is 12494963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12494963 = 13 ⋅961151.

It is an interprime number because it is at equal distance from previous prime (36949403) and next prime (36949439).

It can be written as a sum of positive squares in 2 ways, for example, as 34975396 + 1974025 = 5914^2 + 1405^2 .

It is a cyclic number.

It is not a de Polignac number, because 36949421 - 2¹⁰ = 36948397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36949481) 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, 499280 + ... + 499353.

It is an arithmetic number, because the mean of its divisors is an integer number (9487023).

Almost surely, 2^36949421 is an apocalyptic number.

It is an amenable number.

36949421 is a deficient number, since it is larger than the sum of its proper divisors (998671).

36949421 is an equidigital number, since it uses as much as digits as its factorization.

36949421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998670.

The product of its digits is 46656, while the sum is 38.

The square root of 36949421 is about 6078.6035402879. The cubic root of 36949421 is about 333.0702776820.

The spelling of 36949421 in words is "thirty-six million, nine hundred forty-nine thousand, four hundred twenty-one".