977401673 has 4 divisors (see below), whose sum is σ = 995843268. Its totient is φ = 958960080.

The previous prime is 977401669. The next prime is 977401679. The reversal of 977401673 is 376104779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376104779 = 307 ⋅1225097.

It can be written as a sum of positive squares in 2 ways, for example, as 308248249 + 669153424 = 17557^2 + 25868^2 .

It is a cyclic number.

It is not a de Polignac number, because 977401673 - 2² = 977401669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (977401679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9220718 + ... + 9220823.

It is an arithmetic number, because the mean of its divisors is an integer number (248960817).

Almost surely, 2^977401673 is an apocalyptic number.

It is an amenable number.

977401673 is a deficient number, since it is larger than the sum of its proper divisors (18441595).

977401673 is a wasteful number, since it uses less digits than its factorization.

977401673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18441594.

The product of its (nonzero) digits is 222264, while the sum is 44.

The square root of 977401673 is about 31263.4238847891. The cubic root of 977401673 is about 992.4097583271.

The spelling of 977401673 in words is "nine hundred seventy-seven million, four hundred one thousand, six hundred seventy-three".