1006401479 has 4 divisors (see below), whose sum is σ = 1065601584. Its totient is φ = 947201376.

The previous prime is 1006401437. The next prime is 1006401491. The reversal of 1006401479 is 9741046001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9741046001 = 71 ⋅137197831.

It is not a de Polignac number, because 1006401479 - 2¹² = 1006397383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006401419) 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, 29600027 + ... + 29600060.

It is an arithmetic number, because the mean of its divisors is an integer number (266400396).

Almost surely, 2^1006401479 is an apocalyptic number.

1006401479 is a deficient number, since it is larger than the sum of its proper divisors (59200105).

1006401479 is an equidigital number, since it uses as much as digits as its factorization.

1006401479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59200104.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1006401479 is about 31723.8314047972. The cubic root of 1006401479 is about 1002.1292892427.

The spelling of 1006401479 in words is "one billion, six million, four hundred one thousand, four hundred seventy-nine".