72307007 has 2 divisors, whose sum is σ = 72307008. Its totient is φ = 72307006.

The previous prime is 72306977. The next prime is 72307019. The reversal of 72307007 is 70070327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72307007 - 2⁶ = 72306943 is a prime.

It is a super-2 number, since 2×72307007² = 10456606522596098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72307507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36153503 + 36153504.

It is an arithmetic number, because the mean of its divisors is an integer number (36153504).

Almost surely, 2^72307007 is an apocalyptic number.

72307007 is a deficient number, since it is larger than the sum of its proper divisors (1).

72307007 is an equidigital number, since it uses as much as digits as its factorization.

72307007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2058, while the sum is 26.

The square root of 72307007 is about 8503.3526917328. The cubic root of 72307007 is about 416.6072227376.

The spelling of 72307007 in words is "seventy-two million, three hundred seven thousand, seven".