1672426477 has 8 divisors (see below), whose sum is σ = 1714417056. Its totient is φ = 1630576752.

The previous prime is 1672426429. The next prime is 1672426487. The reversal of 1672426477 is 7746242761.

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-1672426477 is a prime.

It is a super-3 number, since 3×1672426477³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672426487) 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, 10963 + ... + 58864.

It is an arithmetic number, because the mean of its divisors is an integer number (214302132).

Almost surely, 2^1672426477 is an apocalyptic number.

It is an amenable number.

1672426477 is a deficient number, since it is larger than the sum of its proper divisors (41990579).

1672426477 is an equidigital number, since it uses as much as digits as its factorization.

1672426477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70427.

The product of its digits is 790272, while the sum is 46.

The square root of 1672426477 is about 40895.3111860027. The cubic root of 1672426477 is about 1186.9953332123.

The spelling of 1672426477 in words is "one billion, six hundred seventy-two million, four hundred twenty-six thousand, four hundred seventy-seven".