677421455 has 8 divisors (see below), whose sum is σ = 839128704. Its totient is φ = 524455200.

The previous prime is 677421431. The next prime is 677421467. The reversal of 677421455 is 554124776.

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

It is not a de Polignac number, because 677421455 - 2⁶ = 677421391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2185076 + ... + 2185385.

It is an arithmetic number, because the mean of its divisors is an integer number (104891088).

Almost surely, 2^677421455 is an apocalyptic number.

677421455 is a deficient number, since it is larger than the sum of its proper divisors (161707249).

677421455 is a wasteful number, since it uses less digits than its factorization.

677421455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4370497.

The product of its digits is 235200, while the sum is 41.

The square root of 677421455 is about 26027.3213181841. The cubic root of 677421455 is about 878.2530144461.

The spelling of 677421455 in words is "six hundred seventy-seven million, four hundred twenty-one thousand, four hundred fifty-five".