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72587423 is a prime number
BaseRepresentation
bin1000101001110…
…01100010011111
312001120211020002
410110321202133
5122040244143
611111444515
71540661066
oct424714237
9161524202
1072587423
1137a79007
122038673b
131206644c
1498d71dd
15658c5b8
hex453989f

72587423 has 2 divisors, whose sum is σ = 72587424. Its totient is φ = 72587422.

The previous prime is 72587381. The next prime is 72587509. The reversal of 72587423 is 32478527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72587423 - 220 = 71538847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72587023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36293711 + 36293712.

It is an arithmetic number, because the mean of its divisors is an integer number (36293712).

Almost surely, 272587423 is an apocalyptic number.

72587423 is a deficient number, since it is larger than the sum of its proper divisors (1).

72587423 is an equidigital number, since it uses as much as digits as its factorization.

72587423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 38.

The square root of 72587423 is about 8519.8252916360. The cubic root of 72587423 is about 417.1450804162.

The spelling of 72587423 in words is "seventy-two million, five hundred eighty-seven thousand, four hundred twenty-three".