7920455 has 8 divisors (see below), whose sum is σ = 9666000. Its totient is φ = 6228736.

The previous prime is 7920449. The next prime is 7920457. The reversal of 7920455 is 5540297.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7920455 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7920457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13130 + ... + 13719.

It is an arithmetic number, because the mean of its divisors is an integer number (1208250).

Almost surely, 2^7920455 is an apocalyptic number.

7920455 is a deficient number, since it is larger than the sum of its proper divisors (1745545).

7920455 is a wasteful number, since it uses less digits than its factorization.

7920455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26913.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 7920455 is about 2814.3302933380. The cubic root of 7920455 is about 199.3349157664.

The spelling of 7920455 in words is "seven million, nine hundred twenty thousand, four hundred fifty-five".