42633737 has 2 divisors, whose sum is σ = 42633738. Its totient is φ = 42633736.

The previous prime is 42633719. The next prime is 42633761. The reversal of 42633737 is 73733624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34703881 + 7929856 = 5891^2 + 2816^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42633737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42633697 and 42633706.

It is not a weakly prime, because it can be changed into another prime (42633707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21316868 + 21316869.

It is an arithmetic number, because the mean of its divisors is an integer number (21316869).

Almost surely, 2^42633737 is an apocalyptic number.

It is an amenable number.

42633737 is a deficient number, since it is larger than the sum of its proper divisors (1).

42633737 is an equidigital number, since it uses as much as digits as its factorization.

42633737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 35.

The square root of 42633737 is about 6529.4515083581. The cubic root of 42633737 is about 349.3422667780.

It can be divided in two parts, 4263 and 3737, that added together give a cube (8000 = 20³).

The spelling of 42633737 in words is "forty-two million, six hundred thirty-three thousand, seven hundred thirty-seven".