72049753 has 2 divisors, whose sum is σ = 72049754. Its totient is φ = 72049752.

The previous prime is 72049711. The next prime is 72049781. The reversal of 72049753 is 35794027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66536649 + 5513104 = 8157^2 + 2348^2 .

It is a cyclic number.

It is not a de Polignac number, because 72049753 - 2¹³ = 72041561 is a prime.

It is a super-2 number, since 2×72049753² = 10382333814722018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72049793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36024876 + 36024877.

It is an arithmetic number, because the mean of its divisors is an integer number (36024877).

Almost surely, 2^72049753 is an apocalyptic number.

It is an amenable number.

72049753 is a deficient number, since it is larger than the sum of its proper divisors (1).

72049753 is an equidigital number, since it uses as much as digits as its factorization.

72049753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 72049753 is about 8488.2125915884. The cubic root of 72049753 is about 416.1125670010.

The spelling of 72049753 in words is "seventy-two million, forty-nine thousand, seven hundred fifty-three".