70723501 has 2 divisors, whose sum is σ = 70723502. Its totient is φ = 70723500.

The previous prime is 70723487. The next prime is 70723511. The reversal of 70723501 is 10532707.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64818601 + 5904900 = 8051^2 + 2430^2 .

It is a cyclic number.

It is not a de Polignac number, because 70723501 - 2¹⁵ = 70690733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70723511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35361750 + 35361751.

It is an arithmetic number, because the mean of its divisors is an integer number (35361751).

Almost surely, 2^70723501 is an apocalyptic number.

It is an amenable number.

70723501 is a deficient number, since it is larger than the sum of its proper divisors (1).

70723501 is an equidigital number, since it uses as much as digits as its factorization.

70723501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 70723501 is about 8409.7265710604. The cubic root of 70723501 is about 413.5435489109.

The spelling of 70723501 in words is "seventy million, seven hundred twenty-three thousand, five hundred one".