1429977 has 4 divisors (see below), whose sum is σ = 1906640. Its totient is φ = 953316.

The previous prime is 1429969. The next prime is 1430027. The reversal of 1429977 is 7799241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7799241 = 3 ⋅2599747.

It is not a de Polignac number, because 1429977 - 2³ = 1429969 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429907) 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, 238327 + ... + 238332.

It is an arithmetic number, because the mean of its divisors is an integer number (476660).

2^1429977 is an apocalyptic number.

It is an amenable number.

1429977 is a deficient number, since it is larger than the sum of its proper divisors (476663).

1429977 is an equidigital number, since it uses as much as digits as its factorization.

1429977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476662.

The product of its digits is 31752, while the sum is 39.

The square root of 1429977 is about 1195.8164574884. The cubic root of 1429977 is about 112.6617131131.

The spelling of 1429977 in words is "one million, four hundred twenty-nine thousand, nine hundred seventy-seven".