36423731 has 8 divisors (see below), whose sum is σ = 37571904. Its totient is φ = 35291200.

The previous prime is 36423721. The next prime is 36423733. The reversal of 36423731 is 13732463.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36423731 is a prime.

It is a super-2 number, since 2×36423731² = 2653376359920722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36423694 and 36423703.

It is not an unprimeable number, because it can be changed into a prime (36423733) 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, 911 + ... + 8583.

It is an arithmetic number, because the mean of its divisors is an integer number (4696488).

Almost surely, 2^36423731 is an apocalyptic number.

36423731 is a deficient number, since it is larger than the sum of its proper divisors (1148173).

36423731 is a wasteful number, since it uses less digits than its factorization.

36423731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821.

The product of its digits is 9072, while the sum is 29.

The square root of 36423731 is about 6035.2076186325. The cubic root of 36423731 is about 331.4831648521.

The spelling of 36423731 in words is "thirty-six million, four hundred twenty-three thousand, seven hundred thirty-one".