6920451 has 8 divisors (see below), whose sum is σ = 10252560. Its totient is φ = 4613616.

The previous prime is 6920449. The next prime is 6920453. The reversal of 6920451 is 1540296.

It is an interprime number because it is at equal distance from previous prime (6920449) and next prime (6920453).

It is not a de Polignac number, because 6920451 - 2¹ = 6920449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 256313 = 6920451 / (6 + 9 + 2 + 0 + 4 + 5 + 1).

It is not an unprimeable number, because it can be changed into a prime (6920453) 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, 128130 + ... + 128183.

It is an arithmetic number, because the mean of its divisors is an integer number (1281570).

Almost surely, 2^6920451 is an apocalyptic number.

6920451 is a deficient number, since it is larger than the sum of its proper divisors (3332109).

6920451 is a wasteful number, since it uses less digits than its factorization.

6920451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256322 (or 256316 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 6920451 is about 2630.6750084341. The cubic root of 6920451 is about 190.5657284505.

The spelling of 6920451 in words is "six million, nine hundred twenty thousand, four hundred fifty-one".