36722437 has 4 divisors (see below), whose sum is σ = 37164960. Its totient is φ = 36279916.

The previous prime is 36722393. The next prime is 36722443. The reversal of 36722437 is 73422763.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73422763 = 37 ⋅1984399.

It is a cyclic number.

It is not a de Polignac number, because 36722437 - 2¹¹ = 36720389 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 (36728437) 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, 221137 + ... + 221302.

It is an arithmetic number, because the mean of its divisors is an integer number (9291240).

Almost surely, 2^36722437 is an apocalyptic number.

It is an amenable number.

36722437 is a deficient number, since it is larger than the sum of its proper divisors (442523).

36722437 is an equidigital number, since it uses as much as digits as its factorization.

36722437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442522.

The product of its digits is 42336, while the sum is 34.

The square root of 36722437 is about 6059.9040421446. The cubic root of 36722437 is about 332.3868482639.

The spelling of 36722437 in words is "thirty-six million, seven hundred twenty-two thousand, four hundred thirty-seven".