1672470409 has 2 divisors, whose sum is σ = 1672470410. Its totient is φ = 1672470408.

The previous prime is 1672470403. The next prime is 1672470427. The reversal of 1672470409 is 9040742761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1604242809 + 68227600 = 40053^2 + 8260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1672470409 - 2⁵ = 1672470377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1672470403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836235204 + 836235205.

It is an arithmetic number, because the mean of its divisors is an integer number (836235205).

Almost surely, 2^1672470409 is an apocalyptic number.

It is an amenable number.

1672470409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672470409 is an equidigital number, since it uses as much as digits as its factorization.

1672470409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 1672470409 is about 40895.8483100669. The cubic root of 1672470409 is about 1187.0057266184.

The spelling of 1672470409 in words is "one billion, six hundred seventy-two million, four hundred seventy thousand, four hundred nine".