36649069 has 4 divisors (see below), whose sum is σ = 37912860. Its totient is φ = 35385280.

The previous prime is 36649027. The next prime is 36649073. The reversal of 36649069 is 96094663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96094663 = 7 ⋅13727809.

It can be written as a sum of positive squares in 2 ways, for example, as 6563844 + 30085225 = 2562^2 + 5485^2 .

It is a cyclic number.

It is not a de Polignac number, because 36649069 - 2¹¹ = 36647021 is a prime.

It is a super-2 number, since 2×36649069² = 2686308517133522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36649009) 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, 631852 + ... + 631909.

It is an arithmetic number, because the mean of its divisors is an integer number (9478215).

Almost surely, 2^36649069 is an apocalyptic number.

It is an amenable number.

36649069 is a deficient number, since it is larger than the sum of its proper divisors (1263791).

36649069 is a wasteful number, since it uses less digits than its factorization.

36649069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263790.

The product of its (nonzero) digits is 209952, while the sum is 43.

The square root of 36649069 is about 6053.8474543054. The cubic root of 36649069 is about 332.1653413868.

The spelling of 36649069 in words is "thirty-six million, six hundred forty-nine thousand, sixty-nine".