72372803 has 2 divisors, whose sum is σ = 72372804. Its totient is φ = 72372802.

The previous prime is 72372739. The next prime is 72372841. The reversal of 72372803 is 30827327.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72372803 - 2⁶ = 72372739 is a prime.

It is a super-2 number, since 2×72372803² = 10475645228153618, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72372803.

It is not a weakly prime, because it can be changed into another prime (72374803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36186401 + 36186402.

It is an arithmetic number, because the mean of its divisors is an integer number (36186402).

Almost surely, 2^72372803 is an apocalyptic number.

72372803 is a deficient number, since it is larger than the sum of its proper divisors (1).

72372803 is an equidigital number, since it uses as much as digits as its factorization.

72372803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 72372803 is about 8507.2206389631. The cubic root of 72372803 is about 416.7335488015.

The spelling of 72372803 in words is "seventy-two million, three hundred seventy-two thousand, eight hundred three".