207620745 has 16 divisors (see below), whose sum is σ = 351734400. Its totient is φ = 104217344.

The previous prime is 207620741. The next prime is 207620753. The reversal of 207620745 is 547026702.

It is not a de Polignac number, because 207620745 - 2² = 207620741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (207620741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406845 + ... + 407354.

It is an arithmetic number, because the mean of its divisors is an integer number (21983400).

Almost surely, 2^207620745 is an apocalyptic number.

It is an amenable number.

207620745 is a deficient number, since it is larger than the sum of its proper divisors (144113655).

207620745 is a wasteful number, since it uses less digits than its factorization.

207620745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814224.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 207620745 is about 14409.0508014928. The cubic root of 207620745 is about 592.1388851541.

The spelling of 207620745 in words is "two hundred seven million, six hundred twenty thousand, seven hundred forty-five".