72343703 has 2 divisors, whose sum is σ = 72343704. Its totient is φ = 72343702.

The previous prime is 72343699. The next prime is 72343729. The reversal of 72343703 is 30734327.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72343703 - 2² = 72343699 is a prime.

It is a super-2 number, since 2×72343703² = 10467222727504418, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72343753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36171851 + 36171852.

It is an arithmetic number, because the mean of its divisors is an integer number (36171852).

Almost surely, 2^72343703 is an apocalyptic number.

72343703 is a deficient number, since it is larger than the sum of its proper divisors (1).

72343703 is an equidigital number, since it uses as much as digits as its factorization.

72343703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 29.

The square root of 72343703 is about 8505.5101551876. The cubic root of 72343703 is about 416.6776872463.

The spelling of 72343703 in words is "seventy-two million, three hundred forty-three thousand, seven hundred three".